Mathematics Middle School

(01.02 MC)Betty had $70. She bought a necklace for $9 and a ring for $7. Which expression correctly shows the total money Betty has left?
A $70 − (−$9) + (−$7)
B $70 + (−$9) + (−$7)
C $70 − (−$9) − (−$7)
D $70 + (−$9) − (−$7)

answer choices
A
B
C
D

Answers

Answer 1
the answer is B since you have to subtract 9 and 7 and thats the same thing as adding negative to a positive
Answer 2

The expression correctly shows the total money Betty has left is $70 + (−$9) + (−$7). The correct option is B.

What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Betty had $70. she bought a necklace for $9 and a ring for $7. The expression for the amount left will be written below,

The amount of the necklace and ring will be deducted from the initial amount,

E = $70 + (−$9) + (−$7)

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Related Questions

1. How is the valuation of current assets affected if the company follows IFRS?
a. Valuation is based on historical cost.
b. Valuation is based on market adjustments.
c. Valuation is based on LCM accounting.
d. Assets are expensed immediately.

2. Many of the accounting standards in GAAP for current asset accounts are _________ with the international standards.
a. converged
b. accordant
c. accrued
d. converted

3. Unearned subscription revenue occurs on the balance sheet as a
a. long term asset
b. long term investment
c. current asset of long term investment
d. current liablity of long term liablity

4. Interest payable is shown on the
a. income statement
b. balance sheet as a long term liablity
c. balance sheet as a current liablity
d. balance sheet as a long term asset


Answers

The valuation of the current assets may be affected will the company follows the IFRS is that the valuation is based on the historical cost. The answer is A.

Many of the accounting standard in GAAP for surrent assets account are converted with the international standards. The answer is D.

Unearned subscription account usually occur on the balance sheet as a current liability of long term liability. The answer is D.

The interest payable is always shown on the balance sheet as a current liability. The answer in this question is C.

1/3 + 5/6 and explain why

Answers

First you have to make a common denominator the same, so 3 can go into 6 2 times so you would put 2/6 + 5/6 which then equals 7/6
1 1/6 because you have to make the denominator the same so you turn 1/3 into 6ths which is 2/6 then you add them and you will get 7/6 and that simplified will be 1 1/6

I don't understand this. Please help!:::: Provide an answer for a, b, c, and d.

Answers

Answer for part A is  [tex]\angle A \cong \angle D[/tex] which in English means "angle A is congruent to angle D"

The reason why we know that angle A and angle D are congruent is because they are both right angles. By the right angle congruence theorem (the reason just below the blank for part A), we can say that angle A = angle D. They are both 90 degree angles. 

------------------------------------------------
Answer for the blank in part B is "Given" without quotation marks of course. This is the first "given" while the second given is coming up in part C

------------------------------------------------
For part C, the other given is [tex]\angle C \cong \angle F[/tex] so that's what will go in the blank. It may seem silly, but all we're doing is repeating verbatim what is given to us. With any proof, you always start with what you are given and somehow connect it with what you're trying to prove

------------------------------------------------
Finally, the answer for the blank in part D is "AAS Congruence Theorem" (without quotes)

The AAS congruence theorem allows us to prove two triangles congruent if we know if two pairs of angles are congruent plus if we know two sides are congruent as well.

The angle portions are covered by part A and part C. The side portions are part B's territory. Combining A, B, & C allows us to use the AAS theorem

Note: It is NOT the ASA theorem because the two angles do not sandwich the sides. In other words, the side AB is not between the two angles A and C. Similarly, DE is not between the two angles D and F. The order is very important as ASA is slightly different than AAS. 

Calculate the surface of the cube.

Answers

The surface area would be the area of one side x6, since cubes have 6 identical sides. And each side has dimensions 1.8 cm x 1.8 cm, which is 3.24 cm^2. (3.24 cm^2) x 6 = 19.44 cm^2
Cube has 6 sides at 1.8 cm answer is A= 6a² = 6 · 1.8² = 19.44

The sales tax rate is 8.2%. Estimate the sales tax on a computer that costs $550.
about $40
about $36
about $32
about $44

Answers

Answer:

The sales tax on the computer is $45.10.

Explanation:

The sales tax (x) on the computer can be expressed by the equation:

x=550×8.2100

x=5.5×8.2

x=45.1

could you please find what x=

for both of them please

thank you

Answers

8x-23=3x+22
Add 23 to both sides
8x=3x+45
Subtract 3x from both sides
5x=45
Divide both sides by 5
X=9

X+10+x+14=22
Add like terms
2x+24=22
Subtract 24 from both sides
2x=-2
Divide both sides by 2
X=-1

Write an expression that shows how to multiply 7 ×256 using expanded form and distributive property

Answers

Let's make sure we know the definitions of expanded form and distributive property first. The expanded form of a number is a way of writing that number as the sum of its place values. If we break up 256 by place value, we have 2 hundreds, 5 tens, and 6 ones, so its expanded form would be 200+50+6.

The distributive property is a property of multiplication that states that if you have two terms a and (b+c) multiplied together, their product is the same as ab+ac; the a is distributed multiplicatively to the b and the c.

Putting 2 and 2 together, this question wants us to take the expanded form of 256 (200+50+6), and use the distributive property to find:

[tex]7 \times(200+50+6)[/tex]

Can you use the definition of the distributive property above to find the product?

The wildflowers at a national park have been decreasing in numbers. There were 300 wildflowers in the first year that the park started tracking them. Since then, there have been one fourth as many new flowers each year. Create the sigma notation showing the infinite growth of the wildflowers and find the sum, if possible.

Year

New flowers

1

1200

2

300

3

75

Answers

Although the number of new wildflowers is decreasing, the total number of flowers is increasing every year (assuming flowers aren't dying or otherwise being removed). Every year, 25% of the number of new flowers from the previous year are added.
The sigma notation would be:
∑ (from n=1 to ∞) 4800 * (1/4)ⁿ , where n is the year. 
Remember that this notation should give us the sum of all new flowers from year 1 to infinite, and the values of new flowers for each year should match those given in the table for years 1, 2, and 3
This means the total number of flowers equals:
Year 1: 4800 * 1/4 = 1200 ]
+
Year 2: 4800 * (1/4)² = 300
+ 
Year 3: 4800 * (1/4)³ = 75
+  
Year 4: 4800 * (1/4)⁴ = 18.75 = ~19 (we can't have a part of a flower)
+
Year 5: 4800 * (1/4)⁵ = 4.68 = ~ 5
+ 
Year 6: 4800 * (1/4)⁶ = 1.17 = ~1
And so on. As you can see, it in the years that follow the number of flowers added approaches zero. Thus, we can approximate the infinite sum of new flowers using just Years 1-6:
1200 + 300 + 75 + 19 + 5 + 1 = 1,600

estimate the square root of 25
to the nearest integer

Answers

The square root of 25 is 5. 
5 since the square root of 25 is 5.

Mathematics rewrites problem 4 on page 57 with different numbers. Solve the new problem and show your work.

Answers

What problems are you talking about?

Max worked 13 hours last week at the grocery store and earned $94.25. If he only worked 5 hours this week, how much money did he earn.

Answers

He will earn $36.25. See work shown.

Answer 7-13 please
Thanks

Answers

The correct answers are as follows:
7. A
The amendment above guarantee jury trial for civil cases at federal courts. The amendment inhibit the court from overturning a jury finding of facts.
8. C
The amendment given above is part of the bills of rights which guarantee a civil trial for civil cases in the federal courts. This amendment ensures that US citizens have the right to have the court to hear their cases.
9. HOUSE OF REPRESENTATIVE.
In the United States today, there are 535 members of congress. 100 of these serves in the US senate while the remaining 435 serve in the house of representative. The US representative is the lower chamber of the United State congress. Together with the senate, they make up the legislature arm of the United States.
10. SUPREME COURT JUSTICE.
The constitution of the United States of America requires that only the people that are natural born citizens of United State is capable of becoming the president of the country. For the supreme court justice, the law did not signifies that a person should be born in America before he can become a supreme court justice.
11. ELECTED.
There is a residency requirement for members of the congress. The law demands that senators and representatives must live in the state in which they are chosen, that is, they are expected to live in the state which they represent.
12. TWO
The members of representative are eligible to serve for two years. After this, two years term they can be considered for re-election every even years. There are no limit to the number of times that the members of representative can be re-elected.
13. SECOND.
The second amendment gives the citizens of US the right to bear arms. The amendment was ratified in 1791. The amendment states that the right of the people to bear arms must not be infringed, this is because a well regulated militia is necessary to the security of a free state.

If 3 pieces of candy costs $2.10 how much would four pieces cost?

Answers

$3 

Hope this helps. 

Each Piece costs .07 cents. Found this out by dividing 2.10 by 3. Then add .07 to 2.10 :) 
2.8 is your answer because if you divide 2.10 by 3 you get 0.7, then all you have to do is multiply 0.7 times 4

how many 1/8 cups are there in 1/4 cup?

Answers

two 1/8 in one 1/4  have a great day
Final answer:

To figure out how many 1/8 cups are in a 1/4 cup, we execute a division of fractions. This problem can be rewritten as 1/4 divided by 1/8, then inverted to 1/4 multiplied by 8/1, which equals 2. Therefore, there are 2 1/8 cups in a 1/4 cup.

Explanation:

To find out how many 1/8 cups are there in 1/4 cup, you need to understand concept of fractions and their division. In this case, we want to know how many times 1/8 goes into 1/4.

We could write this as a division problem, 1/4 ÷ 1/8. Division of fractions involves flipping the second fraction (1/8) and multiplying instead. So, 1/4 divided by 1/8 becomes 1/4 multiplied by 8/1.

This results in the fractions giving us 2.

Therefore, there are 2 1/8 cups in a 1/4 cup.

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Select all the expressions that are equivalent to the polynomial below.

(4x+5)(-3x-1)

A (-16x2 + 10x - 3) + (4x2 - 29x - 2)
B 3(x - 5) - 2(6x2 + 9x + 5)
C 2(x - 1) - 3(4x2 + 7x + 1)
D (2x2 - 11x - 9) - (14x2 + 8x - 4)
E (-15x2 + 9x - 10) + (3x2 - 10x - 5)
F (4x2 - 13x - 7) - (16x2 + 9x - 5)

Answers

Answer:

Options A,C and D

Step-by-step explanation:

(4x+5)(-3x-1) = -12x²-19x-5

Option A:

    (-16x² + 10x - 3) + (4x² - 29x - 2) = -12x²-19x-5

    Option A is correct.

Option B:

    3(x - 5) - 2(6x² + 9x + 5) = -12x²-15x-25

    Option B is wrong.

Option C:

    2(x - 1) - 3(4x² + 7x + 1) = -12x²-19x-5

    Option C is correct.

Option D:

    (2x² - 11x - 9) - (14x² + 8x - 4) = -12x²-19x-5

    Option D is correct.

Option E:

    (-15x² + 9x - 10) + (3x² - 10x - 5) = -12x²-x-15

    Option E is wrong.

Option F:

    (4x² - 13x - 7) - (16x² + 9x - 5) = -12x²-22x-2

    Option F is wrong.

5.35 rounded to the nearest hundredth

Answers

5.35 rounded to the nearest hundredth
Answer: 5.4
Hello there my friend :)

What is 5.35 rounded to the nearest hundred?

Your answer would be 5.4

Hope this helped ^_^

Have a Happy Thanks Giving Break :)
-Ans-

Jessica has a rectangular poster. The poster is 1.8 meters long and 1.5 meters wide. What is the area of the poster in square centimeters?

Answers

You have to multiply length times width. In this case, the length is 1.8 meters. and the width is 1.5 meters. That would give you a total of 2.7 meters square. They are telling to you to put the answer in centimeters, so you have to change the meters to centimeters, 1 meters = 100 centimeters, so you have to multiply 2.7*100 which would give you an answer of 270 square centimeters. YOU'RE WELCOME :)

The area of Jessica's rectangular poster is 27,000 square centimeters.

What is the area of the rectangular poster?

Given the parameters:

Jessica's rectangular poster has dimensions of 1.8 meters in length and 1.5 meters in width.

To find the area of the poster in square centimeters, we need to first convert the dimensions from meters to centimeters, as the area is measured in square centimeters.

Hence:

Length in centimeters = 1.8 × 100 = 180 centimeters

Width in centimeters = 1.5 meters × 100 = 150 centimeters

Next, we can find the area of the poster in square centimeters:

Area = Length × Width

Area = 180 centimeters × 150 centimeters

Area = 27,000 cm²

Therefore, the area is 27,000 square centimeters.

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I would only like help with these two questions can someone please help me? :)

Answers

x is the numbers across the bottom and Y is the numbers on the sides

 coordinates are written (x,y)

so for 1. A is at (1,3) B is (0,5) you can find the rest


for number 2

 (2,1) is D, (3,1) is F  you can find the rest.

to package and ship an item, it cost $5.75 for the first pound and $0.75 for each additional pound. Find the 12th term and explain what it represents.

Answers

if I understood the question the 12th term is $8.25 plus the $5.75 of the first pound 

The 12th term represents the cost of packaging and shipping a 12-pound item, which is $14.

To find the 12th term in this sequence, we first need to understand what the sequence represents. In this case, it's the cost of packaging and shipping items based on their weight.

Let's break down the formula:

For the first pound, the cost is $5.75.

For each additional pound beyond the first, the cost is $0.75.

So, the sequence represents the cost of packaging and shipping items weighing 1 pound, 2 pounds, 3 pounds, and so on.

To find the 12th term:

[tex]\[ \text{Cost} = \$5.75 + (n - 1) \times \$0.75 \][/tex]

Where ( n ) is the weight of the item.

For the 12th term:

n = 12

[tex]\[ \text{Cost} = \$5.75 + (12 - 1) \times \$0.75 \][/tex]

[tex]\[ \text{Cost} = \$5.75 + 11 \times \$0.75 \][/tex]

[tex]\[ \text{Cost} = \$5.75 + \$8.25 \][/tex]

[tex]\[ \text{Cost} = \$14 \][/tex]

So, the 12th term represents the cost of packaging and shipping a 12-pound item, which is $14.

The sum of a number and 14 is less than or equal to three times the number

Answers

14 + x < = 3x....ur inequality

***
the sum means add....so the sum of a number and 14 is 14 + x
is less then or equal....< = 
3 times the number....3x
X+14≤3x
in order to solve
subtract x on both sides
14≤2x
divide by 2 on both sides
7≤x

Solve the equation. 2x + 4 = 3x – 2 6 7 3 –2

Answers

-x+4=-2
-x=-6
x=6
x will be 6

The sum of two consecutive even integers divide by four is 189.5

Answers

94.74 and 94.76=  189.5

could someone help me please

Answers

The correct answer is:  [D]:  "2289.06 cubic centimeters" .
________________________________________________________
Explanation:
______________________________________________________
V = (4/3) * [tex] \pi [/tex] * r³ ;

Given:  [tex] \pi [/tex]  = 3.14 ; 
                                     r = 9 cm ; 
____________________________
Solve for "V" ; 

V = 3.14 * (9 cm)³ ;

  = 3.14 * 729 cm³ ;

= 2289.06 cm³ ;  which is:  Answer choice: [D]:  "2289.06 cubic centimeters" .
___________________________________________________________

Help me please

If you help me I would appreciate it a lot

Answers

Here are all the answers ( I carefully solved each).

7. 4(8)-2(3)= 26

8. (3/4) (8) (6) ÷ 3= 12

9. 2 (3/4) (6) + 8= 17

10. 6 (1/2) + 8 (3/4)= 9

17. 5(6) + 8(1/2)= 34

18. 2 ( 3×8+6) ÷ ( 10*3)= 2

19. (8+6) ÷ 1/2= 7

20. 3(6) - 2(8)= 2

Please vote my answer brainliest. thanks!

Doug got 8 out of 10 questions correct on a math quiz. If each question was worth the same number of points, and the test was worth 50 points total, what was Doug's score?

Answers

it would be 5 point for each question so dougs score is 40
Doug got 40 points on the test. 

There is 10 questions, which equal 50 points so, 50/10 = 5. And he got 8 of those 10 right so multiply 8 * 5 = 40 and that's how you get your answer

Please help I'll rate brainiest answer and 5 stars I suck at math

Answers

The answer would be D

the answer is -5/6...ill explain later

On Thursday after work, the number of cars in a parking lot decreased at a steady rate of 13 cars every 2 minutes. Which rational number describes the number of cars per minute?

Answers

find the unit rate: 13/2 = 6.5 cars/min

Answer:

Required ration which represent the situation = [tex]\frac{-13}{2}[/tex]

Step-by-step explanation:

Given: Cars in parking lot decreases at rate of 13 cars every 2 minutes.

To find: Rational Number which represent given information

Rational Number is a number in form of  [tex]\frac{p}{q}[/tex] where p be any integer and q is non zero integer.

So from given information

No of cars decreases in 2 minutes = 13 cars

So, No of cars decreases in 1 minute = [tex]\frac{13}{2}[/tex]

Therefore rate at which cars decreasing in parking lot is  [tex]\frac{13}{2}[/tex]  cars/min.

Since it is decreasing, ration which represent it must be equal to [tex]\frac{-13}{2}[/tex]

Therefore, Required ration which represent the situation = [tex]\frac{-13}{2}[/tex]

Which of the following statements could be true when a transversal crosses parallel lines? Select all that apply.
Several congruent angles are formed.
Vertical angles are formed.
Complementary angles are formed.
Supplementary angles are formed.
Obtuse angles are formed.

Answers

Answer:

Several congruent angles are formed. Vertical angles are formed. Supplementary angles are formed. Obtuse angles are formed.

Step-by-step explanation:

Final answer:

When a transversal crosses parallel lines, several congruent angles and vertical angles are formed, and supplementary angles can occur; whereas complementary angles are not a necessity, and obtuse angles depend on the transversal's orientation.

Explanation:

When a transversal crosses parallel lines, several geometrical properties are observed that result in certain types of angles being formed. Let's explore these in detail:

Several congruent angles are formed because when a transversal cuts through parallel lines, corresponding angles are congruent, as are alternate interior angles and alternate exterior angles.

Vertical angles are also formed at the points where the transversal intersects the parallel lines. These vertical angles are always congruent.

Supplementary angles are formed when two angles add up to 180 degrees. This is often true for consecutive interior angles on the same side of the transversal.

However, complementary angles, which add up to 90 degrees, are not necessarily formed when a transversal crosses parallel lines. The formation of obtuse angles is possible depending on the orientation of the transversal.

-11.16 write as a fraction

Answers

First lets take away the negative sign for now
Now lets separate the number into its two components which are 11 and 0.16
Now lets rewrite it to 16/100
Next we want to find the greatest common factor between 16 and 100 which is 4 since 4 * 4 equals 16 and 4 * 25 equals 100 so its 4.
Now lets divide 16 and 100 by the greatest common factor so its sixteen divided by 4 over 100 divided by 4
Next we simplify all together which is 4/25
You remember that number 11 we had earlier, well we are going to go grab him back and add him to the fraction and make it 11 4/25 but... remember that negative sign, I said for now, right, so lets put him back on the spotlight.

Answer: -11 4/25
Final answer:

The decimal -11.16 can be converted into a fraction by placing it over 100 to create -1116/100, which simplifies to -279/25 when divided by their greatest common divisor, which is 4.

Explanation:

To convert the decimal -11.16 into a fraction, we first need to consider the position of the decimal points. Here, there are two digits after the decimal point. Therefore, you can put -11.16 over 100 (as there are two digits after the decimal point) to get a fraction. In this case, the fraction would be -1116/100. However, this fraction can be simplified by dividing both the numerator and the denominator by their greatest common divisor. The greatest common divisor of 1116 and 100 is 4. So when you simplify -1116/100, you get -279/25 as the simplest form.

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Plsss helppppppp plsssss

Answers

Set up an equation of ratios as shown below:

  h        24 ft        4
----- = ---------- = ---
  4          6 ft        1

Cross multiplying the 1st and 3rd fractions, we get h=16 ft (answer)
Other Questions
Find the measure of G. An arc that subtends a full angle of 360 degrees is called a(n) ______. During a promotional weekend, a state fair gives a free admission to every 175th person who enter the fair.On Saturday, there were 6742 people attending the fair .how many people received a free admission over the two days The source must decode a message before it can be sent. select one: a. True b. False twice the difference of a number and 3 Find an equation of a parabola that has curvature 8 at the origin. Evaluate. 58(14)2=58-142= ________ The subgroup that comes after genus is __________A. KingdomB.orderC. Family D.Species A certain species of animal is endangered and its numbers are decreasing 12% annually. There are currently 230 animals in the population. Which is an exponential function representing the population and the estimated number of animals in 5 years? A: f(x)=230(0.88);1012 animals B:f(x)=230(0.88);121 animals C:f(x)=230(1.12);1288 animals D:f(x)=230(1.12);405 animals Which structure produces a substance that aids in the mechanical breakdown of fats The Abbasid capital was moved from Damascus, Syria, to _____. Try this out. Use a calculator! We can use the formula KE=0.5m*V^2. To find the kinetic energy (KE) of a payload of mass (m) 100 kg as it flies through the air at the velocity (v) of 55 m/s.(Multiply 0.5 x the mass x velocity squared.) Your answer will be in Joules (a measure of energy).Question 3 options:.Question 3 options:5500 J151250 J302500 J2750 J I need help with all of them Which field of study would be most useful to a person who wants to work with sea turtles? A.Zoology B.Geology C.Botany D.Meteorology 1960s: more women begin to use the title "ms.," which does not reveal whether they are married.1971: the national women's political caucus is founded to encourage greater political participation among women.1972: the equal rights amendment is passed by congress but fails to gain enough support from the states to be ratified.what does this timeline suggest about the feminist movement? Will mark Branliest Plz help Carbon fixation involves the addition of carbon dioxide to _____. carbon fixation involves the addition of carbon dioxide to _____. 3-pga g3p nadph rubp rubisco A parking garage holds 300 cars on each level. There are 4 levels in the garage. How many cars can the parking garage hold in all? Which incentives do interest groups engage in to overcome the free rider problem? Describe in which ways are the new cells (daughter cells) similar to parent cells Steam Workshop Downloader