Mathematics Middle School

poster is shown below:

A rectangle is shown. The length of the rectangle is labeled 18 inches. The width of the rectangle is labeled 6 inches.

What are the dimensions if the poster is enlarged by a factor of seven over two ?

Answers

Answer 1
18*7/2 = 63
6 * 7/2 = 21

63 by 21

Hope this helps!
Answer 2

Answer:

the dude on top of me is 100% right

Step-by-step explanation:

Related Questions

What is 5s fact to multiply 6x8?

Answers

What are you trying to ask ??
Final answer:

Multiplying 6 and 8 gives the value of 48. The question seems to mention '5s fact', which typically refers to multiplication facts of 5, but this does not directly relate to multiplying 6 and 8.

Explanation:

It seems that the '5s fact' mentioned in the question doesn't directly apply to the multiplication problem provided (6x8). Rather, in the context of simple multiplication, a 'fact' typically refers to a multiplication fact, which is a statement of an equation that can be considered universally true in arithmetic. For instance, 5x1=5 or 3x2=6 are multiplication facts.

To multiply 6 and 8, regardless of any number's multiplication facts, you would simply calculate 6x8, which equals 48.

With regard to the '5s fact', if we are referring to the multiplication facts of 5, these would include equations like 5x1=5, 5x2=10, and so on. However, none of the '5s facts' directly relate to multiplying 6x8. If the question refers to some other concept that has not been clarified, please provide further details.

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You need to rent a moving truck for a day you have identified two companies that rent trucks company a charges $45 per day plus $.10 per mile company BCharges $30 per day plus $.20 per mile for how many miles will be cost of renting be the same

Answers

45 + 0.10m = 30 + 0.20m
45 - 30 = 0.20m - 0.10m
15 = 0.10m
15/0.10 = m
150 = m.....they are the same at 150 minutes

check..
45 + 0.10(150) = 60
30 + 0.20(150) = 60
yep, it checks out,,,150 miles

what is the simplified form of the expression 11[(9^2-5^2) divided by 2^2+8]
224.5
242
51.3
110

Answers

[tex] \frac{11(9^2-5^2)}{2^2+8} = \frac{11(81-25)}{4+8} = \frac{11*56}{12} = \frac{11*28}{6} = \frac{11*14}{3} = \frac{154}{3} [/tex]= 51.333333333 ≈ 51.3

Hence, the answer is C.

Answer:

51.3

Step-by-step explanation:

In order to calculate this, you have to remember the norms for the solution of math problems with hierarchy of operations called PEMDAS:

   Parentheses (simplify inside 'em)

   Exponents

   Multiplication and Division (from left to right)

   Addition and Subtraction (from left to right)

So we first solve parentheses:

11[(9^2-5^2)= 11(81-25)=11(56)= 616.

and now we have to divide that by the result of:

2^2+8

Remember first exponents:

2^2+8= 4+8=12

ANd now we just divide:

616/12=51.3333

So the answer would be 51.3

one eighth of a number is less than or equal to 3

Answers

1/8x<3 x<24
one eighth of 3 is less than 24

Explain how you would find the difference of - 45 and - 60

Answers

A number Line would really help with this problem. After some work I
came to a conclusion that the answer is -15. I hope this helped. If I'm wrong, I'm truly sorry.

Is 2 pm how many degrees are in the angle between the hour and minute hand

Answers

60° - minute hand is at 90° and hour hand is at 30°. 90-30=60
Final answer:

At 2 pm, the angle between the hour hand and the minute hand of a clock is 20 degrees. The calculation takes into consideration that the hour hand advances as minutes pass within an hour.

Explanation:

The angle between the hour and the minute hand at 2 pm can be calculated in the following way. First, remember that a full circle, representing one hour on a clock, equals 360 degrees. So, each hour equals 30 degrees (360 divided by 12 hours). However, the hour hand also moves as the minutes pass. At 2 pm exactly, the minute hand is on 12, while the hour hand is at 2. But, the hour hand has also moved 1/3 of the way between 2 and 3 (since 20 minutes have passed in the hour). It is closer to 3 by 1/3 of 30 degrees which equals 10 degrees. Hence, the hour hand is at a position of 60 degrees (2 hours times 30 degrees per hour). Therefore, the angle between the two hands at 2 pm is 20 degrees.

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1/3(12-24v)=-2(4v-2)

Solve the equation for 15 points PLEASE HELP!!!!!!!

Answers

Relax! This isn't so hard once you grasp it. In an equation like this, what's the first step? Distributive property, right? Multiply 1/3 by 12, then by -24 v, and apply the same process to the other side. This leaves you with 4-8v=-8v+4. Now you need to isolate that variable. You have the same variable on both sides, so you do inverse of subtraction on either one. I'm going to choose the one on the right. You add 8v to both sides, leaving you with 4-v=4. Subtract 4 from the first side, and get -v=4. You aren't solving for -v, so flip the sign, and your final answer is v=-4. Make sense? (Let me know if it doesn't--I'm always willing to walk you through it some other way. I plugged it back in, and I am 100% sure that this answer is correct.)

What is 0.34 in word form?

Answers

the answer is thirtyfour.
thirty four hundreths

Jana and her sister went to a restaurant for dinner. Jana's dinner cost $5 more than her sisters. if their combined bill was $19 without tip, what was the price of jana's dinner?

Answers

19/ 2 = 9.5, 5/2 = 2.5, 9.5+ 2.5 = 12, 9.5-2.5 = 7, 7+12 = 19 so $12 is your answer  

The price of Jana's dinner will be $12.

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.

Given that Jana and her sister went to a restaurant for dinner. Jana's dinner cost $5 more than her sisters. if their combined bill was $19 without a tip.

Jana's cost will be calculated by forming two linear expressions as below:-

J + S = 19

J - S = 5

Solve the above equation by elimination method.

2J = 19 + 5

2 J = 24

J = 24 / 2 = 12

Therefore, the price of Jana's dinner will be $12.

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100000 less than 560313 is

Answers

460,313 because 560,313-100,000 is equal to that number

6x=7-4y;x=-2,-1,0

please help i dont understand in 8th grade algerbra 1 honors

Answers

I believe you have to find y by plugging in x.

6(-2) = 7 - 4y
-7         -7

-12 -7 = -4y
-19 
/-4            /-4

4.75 = y
y = 4.75


6(-1) = 7 -4y
-7         -7

-13 = -4y
/-4       /-4

3.25 = y
y = 3.25


6(0) = 7 - 4y
-7       -7 

-7  = -4y
/-4    /-4

1.75 = y
y = 1.75

Answer:

none of ya buisness

Step-by-step explanation:

because i cant remeber

write 3 equivalent forms of 0.472 using decimals and fractions?

Answers

59/125, 472/1000, 236/500
472/1000, 4720/10000, and 47200/100000

*how do you find the additive inverse of a number? give an example of a number and its additive inverse*.. Someone help! I have a D in this class but I literally have no idea what the answer is to this

Answers

The additive inverse of a number is a number, that when added to the original number, results in 0. So, basically, the additive inverse is the opposite...another words, it is the same number with a different sign

5....the additive inverse is -5....because 5 - 5 = 0
-2...the additive inverse is 2....because -2 + 2 = 0
1/3....the additive inverse is -1/3.....1/3 - 1/3 = 0
Final answer:

The additive inverse, or opposite, of a number is the value you add to it to get zero. You find it by changing the sign of the number. So the additive inverse of 5 is -5, and the additive inverse of -3 is 3.

Explanation:

In mathematics, the additive inverse of a number is what you add to a given number to get zero. This is often known as the 'opposite' or 'negation' of a number. The additive inverse of a number 'a' is denoted as '-a'.

For example, the additive inverse of 5 is -5, because 5 + (-5) = 0. Similarly, the additive inverse of -3 is 3, because -3 + 3 = 0.

To find the additive inverse of a number, you essentially change the sign of the number. If the number is positive, its additive inverse will be negative. If the number is negative, its additive inverse will be positive.

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what property was used to rewrite the polynomial expression (x+5)+3(a+(6x)y) to 5+(x+3a+(18x)y)

Answers

3(a+(6x)y) was clearly multiplied out as seen by the 3a and 18xy, so the distributive property was used there. In addition, the commutative and associative properties state that you can rearrange sums, so those were used too 

Addison studies a tarantula that is 30 mm long suppose she uses a microscope to magnify the Spider by 4 x 10 to the second power how long will the Spider appear to be??? please show me how you got it. thank you

Answers

Since it's magnified by 4 *10^2, we have to multiply 30 by 4*10^2 since it's magnified by that number. 30*4*10^2=12000 mm.

A crane cable can support a maximum load of 15,000kg. If a bucket has a mass of 2,000kg and gravel has a mass of 1,500kg for every cubic meter, how many cubic meters of gravel (g) can be safely lifted by the crane?

Answers

2000 kg times 6 cubic meters equals 12000 kg plus 1500 kg equals 13500 kg. So the answer is 6 cubic meters.

Michelle and her brothers Sam and Dean are saving money over summer break each week Michelle saves three times as much as Sam Sam saves $2 more than dean at the end of 5 weeks the three of them have saved a total of 240 how much money did each person spend

Answers

I believe you want to know how much each of them SAVED.

Let the amount saved by Michelle be x, the amount saved by Sam be y and the amount saved by Dean be z.

From the givens:
x = 3y (Michelle saves 3 times as much as Sam).......eq1
y = 2+z (Sam saves 2$ more than Dean)
z=y-2.........eq 2
x+y+z = 240 (total amount)......eq 3

substitute by equation 1 in 3:
3y+y+z=240
4y+z=240......eq 4

substitute by 2 in 4:
4y+y-2=240
5y=242
y= 48.4$

from 1:
x=3y
x=145.2$

from 2:
z=y-2
z=46.4$

By what percent will a fraction change if its numerator is increased by 60% and its denominator is decreased by 20%?

Answers

N/D --> 0.8N/0.4D = 2N/D

--> 100% increase
---------------
It's 100%, = 1 time larger, 2 times as large.

Answer:

It is increased by 100%. The numerator is two times more than the denominator. That's why original fraction will become [tex]\frac{2x}{y}[/tex].        

Step-by-step explanation:

We need to find the percentage, if its numerator is increases by 60% and its denominator decreases by 20%.

First, we let the original fraction: [tex]\frac{x}{y}[/tex]

We have given its numerator is increases by 60% and denominator is decreases by 20% then,

New fraction will become = [tex]\frac{1.6x}{0.8y}[/tex].

Divide the new fraction by original fraction, then we get:

[tex]\frac{1.6x}{0.8y}[/tex]/ [tex]\frac{x}{y}[/tex]

[tex]\frac{1.6x}{0.8y}[/tex]* [tex]\frac{x}{y}[/tex]

Then, it will become [tex]\frac{1.6}{0.8}[/tex].

We can see that, The numerator is two times more than the denominator. That's why original fraction will become [tex]\frac{2x}{y}[/tex].

It is increased by 100%.

If we take an example, Suppose the original fraction is [tex]\frac{5}{8}[/tex] and the new fraction will become [tex]\frac{1.6*5}{0.8*8}[/tex].

= [tex]\frac{8}{6.4}[/tex] = [tex]\frac{80}{64}[/tex]

= [tex]\frac{10}{8}[/tex], it is twice of original fraction [tex]\frac{5}{8}[/tex].

Please can someone help me


There are three students in Mrs. Reed class that have consecutive ages. The sum of their ages is 45. Write the equation that would model how to solve this problem.


A. n+n+2+n+2=45
B. n+n+1+n+3=45
C. n+n+2+n+4=45
D. n+n+1+n+2=45


update: answer is D

Answers

if the answer is D. the equation to represent the ages of students is:
n + n+1 + n+2 = 45
it is showing that  n is the age of one student and the other student has age one year more than the first one and third students has age of 2 years more than first student and one year greater than the second student. if we solve this equation for the value of n, we get;
3n + 3 = 45
3n = 45 -3
3n = 42
n = 14
so the age of one student is 14, second student 15 and third student 16 years.
and if we add there ages, 14 + 15 + 16 = 45

Answer:

he said its d he's right

Step-by-step explanation:

what the answer to this equation
-3+5+2y-7y please show worj

Answers

-3-5=2
2y-7y=-5y
2-5y is the answer
-3+5+2y-7y

• first you combine like terms
• -7y and +2y are like terms because they both end with the variable "y"
•which gives you -5y because a negative and a positive you subtract and keep the sign of the larger number in this case would be -7y
• next you combine 5 and -3, since the numbers have opposite signs, you subtract and keep the sign of the larger number, which in this case would be 5 and the answer to +5-3 is 2.

Final answer: -5y+2

A basket contains 3/8 as many oranges as apples and three over four as many oranges as pairs what is the ratio of the number of oranges to the total number of fruits in the basket

Answers

# of apples

3/8(a)=# of oranges

p=# of pears

3/4(p)=# of oranges

(3/8)a=(3/4)p

(3/8)/(3/4)=p/a

(3/8)(6/8)=p/a

3/6=p/a

1/2=p/a

the ratios of pears to apples is 1 to 2

for every 1 pear there are 2 apples

if there are 4 pears there are 8 apples

there are 8 apples

(3/8)(8)=3 oranges

there are 4 pears

(3/4)(4)=3 oranges again

8 apples, 3 oranges, 4 pears

15 pieces of fruit and 3 are oranges

ratio is 3/15=1/5

4/5/2015 | Arthur D.

The perimeter of a rectangle is 108 inches. It is twice as long as it is wide.Find the length; the width.Draw the figure.

Answers

answer is given above
36 + 36 +18 + 18 = 108

Length: 36"
Width: 18"

I'll leave you to do the drawing. Besides, 36" wouldn't fit on any old A4 sheet of paper.

A bottle contains 240 millimeters of juice. How many litters of juice is this?

Answers

The conversion of (240mL)/1 * (10^-3L)/1mL = .24L

A rectangular patio has a length of 12 1/2 feet and an area of 103 1/8 square feet. What is the width of the patio?

Answers

Area= length x width

103 1/8 = 12 1/2 x width

width = (103 1/8) ÷ (12 1/2)
width = 8.25 or 8 1/4

Answer:

The answer is b. 8 1/4 feet.

In general, the air temperature decreases 12 degrees Fahrenheit for every 4,000 feet increase altitude. If a hiker climbs 3,000 feet, by how much can she expect the temperature to increase?

Answers

9 degrees


because 12/4 = 3 degrees (per 1000 feet)
3 x 3 = 9 degrees total (in 3000 feet)

hope this helps

Describe two diffrent ways to solve negative 10=1 fourth(8y-12)

Answers

The given equation is better written as

-10 = 1/4*(8y-12)

The first way of the solution is as follows:
Distribute 1/4 to the inside equation of the parenthesis.
-10 = 2y - 3
2y = -10 + 3 = -7
y = -7/2 = -3.5

The second way of the solution is as follows:
Cross-multiply the denominator a the right side to the left side.
-10*4 = 8y - 12
-40 = 8y - 12
8y = -40 + 12 = -28
y = -28/8 = -3.5

A store owner has 7.11 lbs of candy if he puts the candy into 9 jars how much candy will each jar have

Answers

each jar will have 0.79 lbs of candy

In the number 8,888.888, how does the 8 in the hundredths place compare to the 8 in the place to its left? A. The 8 in the hundredths place represents of what the 8 to its left represents. B. The 8 in the hundredths place represents of what the 8 to its left represents. C. The 8 in the hundredths place represents 100 times what the 8 to its left represents. D. The 8 in the hundredths place represents 10 times what the 8 to its left represents.

Answers

The answer is to the question is D.


Answer: The 8 in the hundredths place represents 1/10 of the 8 to its lefts response

Step-by-step explanation:

There is a beaker of 3.5% acid solution and a beaker of 6% acid solution in the science lab. Mr. Larson needs 200 milliliters of a 4.5% acid solution for an experiment. How many milliliters of each solution should he combine?

Answers

et x = the volume of the 3.5% solution 
Let y = the volume 6% solution 

(3.5%)x + (6%)y = (4.5%)(200) 
0.035)x + 0.06y = 0.045(200) 
0.035x + 0.06y = 9 ( Equation 1 )

x + y = 200 ( Equation 2 )
x = 200 - y 

Substitute x = 200 - y into equation 1: 
0.035x + 0.06y = 9 
0.035(200 - y) + 0.06y = 9 
7 - 0.035y + 0.06y = 9 
0.06y - 0.035y = 9 - 7 
0.025y = 2 
y = 2/(0.025) 
y = 80 mL (the volume of 6% solution.)

Substitute y = 80 into equation 2: 
x + y = 200 
x + 80 = 200 
x = 200 - 80 
x = 120 mL (the volume of the 3.5% solution.)

Therefore, Mr. Larson should combine 120 mL of the 3.5% solution 
and 80 mL of the 6% solution to make 200 mL of 4.5% solution. 

Answer is 120 mL of the 3.5% solution & 80 mL of the 6% solution

Hope I helped :)
Final answer:

To obtain 200 mL of a 4.5% acid solution, Mr. Larson needs 120 mL of the 3.5% acid solution and 80 mL of the 6% acid solution.

Explanation:

To find the volumes of each of the two solutions needed, we can set up a system of equations based on the principle of concentration:



Let x be the volume of the 3.5% acid solution needed, and y be the volume of the 6% acid solution needed.



The equation for the total volume is x + y = 200 mL.



The equation for the concentration is (0.035x + 0.06y) / 200 = 0.045.



Solving the system of equations, we can find the values of x and y.



x = 200 - y



(0.035(200 - y) + 0.06y) / 200 = 0.045



Simplifying the equation, we get:



7 - 0.035y + 0.06y = 9



0.025y = 2



y = 80 mL



Substituting the value of y into the equation x = 200 - y, we get:



x = 200 - 80



x = 120 mL



Therefore, Mr. Larson needs 120 mL of the 3.5% acid solution and 80 mL of the 6% acid solution to obtain 200 mL of a 4.5% acid solution.

The following is the correct way to begin solving for the quotient of 39.538 divided by 5.3 using the standard method:


True
or
false

Answers

I would say true, because by saying 39.538 divided by 5.3, you are splitting 39.538 into 5.3 groups which equals about 7.46. Hope this helps!

Answer:

true

Step-by-step explanation:

39.538 divided by 5.3 using standard method. Which is true

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