Mathematics Middle School

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1/3 (21 - 3a) = 6 - 8

a) All real numbers

b)no solution

c) -1

d) 0

Answers

Answer 1

Answer:

what the worls

Step-by-step explanation:

what the worls

Related Questions

Find the average of 27 and 45

Answers

Average is the total of the numbers divided by the amount of numbers.
[tex] \frac{27+45}{2} [/tex]
[tex] \frac{72}{2} [/tex]
36 is the answer.
The average of 27 and 45 is 36

answer a and b...............

Answers

a.  2 1/4=(2*4+1)/4=(8+1)/4=9/4
[tex] \frac{ \frac{9}{4} }{ \frac{1}{2} } = \frac{9}{4}* \frac{2}{1} = \frac{9}{2} \ \textgreater \ 1 [/tex]
⇒the amount of lettuce > the amount of tomatoes

b. 9/4 cups of lettuce..........1/2 lb of tomatoes     |*2
     18/4.........................................1 lb of tomatoes

We need 9/2 cups of lettuce= 4,5 cups

what is 8.6x+2.2(2x-5)=54

Answers

[tex]8.6x+2.2(2x-5)=54\\\\8.6x+(2.2*2x)+[2.2*(-5)]=54\\\\8.6x+4.4x-11=54\\\\13x-11=54\\\\13x=65\\\\\\x=5[/tex]

Use the distributive property to expand the expression. −13x − (3y − z) + 5

Answers

-13x-3y+z+5

the negative makes 3y negative and z positive
-13x-3y+z+5
 3y negative and z positive

How can i do this problem? "The athletic department raised $14,500 to buy new football uniforms. If each uniform costs $258, how many uniforms can they buy? Explain how you interpreted the remainder."

Answers

14,500/258 is 56.2015504 blah blah blah. You can't have a fifth of a uniform. I would interpret it as they have a little money left over, but they can't buy another uniform.

So your answer is 56 uniforms.

Do these questions, plz ☹️☹️

Answers

1.

He fills 5/6 lb per bag.
If he fills up 6 bags, he will use 6 * 5/6 lb = 5 lb.
Since he gets peanuts in 2-lb bags, he'd use 2 1/2 2-lb bags.
If he fills double that amount, 10 5/6-lb bags, he will use 10 lb of peanuts which is exactly 5 2-lb bags.
Answer: He should buy 5 2-lb bags.

2.

Each board has length x.
He cuts 3/5 of the length.
Each leftover piece is 2/5 of the length, or 2/5 x.
When he puts together several of the leftover pieces, he has 4 times the length of the original board, or 4x.
4x/(2/5 x) = 4x * 5/2 x = 10x

He has cut 10 boards.

A drawing of a garden uses a scale of 1 in 3 ft. Find the length of the drawing is 13 inches

Answers

So we know each inch is 3 feet.

1:3.

13:?

So we multiply 13 by 3 to get the answer!

13:39

or 39 feet!

I hope this helped! :))

The length of the original drawing will be 39 feet.

Given scale:

1 inch = 3 feet

Length of the drawing = 13 inches

What is a scale factor?

A scale factor is a factor by which the dimensions of an object are enlarged.

1 inch = 3 feet

So, 13 inches =13*3 feet

13 inches =39 feet

So, the length of the original drawing =39 feet.

Hence, the length of the original drawing will be 39 feet.

To get more about scale factors visit:

https://brainly.com/question/1903243

Round to the place value of the underline digit 934,567 the underline digit is 4

Answers

4,600 is the place value or you can just say 4,000

Ogden and Sylvio are both running backs for their respective football teams. Sylvio ran for a total of 82 yards while Ogden ran for a total of -21 yards. What is the difference in the number of yards they ran?

Answers

The difference between the yards is -103

what is the function of delta sign in maths

Answers

The uppercase delta Δ means "change in" so for example: Δx = difference between two x values.

The lowercase delta which Brainly does not have, looks like a squiggly lowercase d. It generally means "very small change in".

Final answer:

The delta sign (Δ) in mathematics indicates a change in a certain quantity, calculated by subtracting the initial value from the final value, commonly used for indicating displacement in physics.

Explanation:

The delta sign (uppercase Greek letter delta, Δ) is commonly used in mathematics to denote a change in a certain quantity. When we say Δx, it signifies the 'change in x' or the difference between the final and initial values of 'x'. This is typically calculated by subtracting the initial value xo from the final value xf. For instance, if we're calculating displacement, which is a change in position, we subtract the starting position xo from the ending position xf to get Δx. The SI unit for displacement is the meter, but other units such as kilometers may also be used, requiring conversion to meters for consistency in calculations.

Mr. Malone used 40 pounds of insecticide to cover 1,760 square feet of lawn and 60 pounds to cover an additional 2,640 square feet. how many pounds of insecticide would Mr. Malone need to cover his whole lawn of 4,480 square feet?

Answers

1760/40 = 44
He covered 44 ft^2 per lb.

2640/60 = 44
Again, he covered 44 ft^2 per lb.

In both cases, he covered 44 square feet per pound.
To cover 4480 sq ft, he needs:

4480/44 = 101.818181... = 101 9/11 pounds

About how much greater is 165760 than 14090

Answers

its 164270 greater than 14090 your welcome :)
151,670 is the answer

Ben is showing his work in simplifying (3.9 − 9.4) − 0.6 + 6.1. Identify any error in his work or reasoning.
Step 1: (3.9 − 9.4) − 0.6 + 6.1
Step 2: 3.9 + (−9.4 − 0.6) + 6.1 (associative property) Step 3: 3.9 − 10 + 6.1
Step 4: 3.9 + 6.1 − 10 (identity property)
Step 5: 10 − 10 = 0
A. He wrote identity instead of commutative in step 4.
B. He wrote associative instead of commutative in step 2.
C. He wrote identity instead of distributive in step 4.
D. He wrote associative instead of distributive in step 2.

Answers

he wrote identity instead of commutative in step 4 :) I hope this helps

Answer:

A.He wrote identity property  instead of commutative in step 4.

Step-by-step explanation:

We are given that

Ben is showing his work in simplifying (3.9-9.4)-0.6+6.1

We have to identify error made by Ben in his work

Step 1. (3.9-9.4)-0.6+6.1

Step 2.3.9+(-9.4-0.6)+6.1

Reason: Using associative property of addition

[tex](a+b)+c=a+(b+c)[/tex]

Step 3.3.9-10+6.1

Step 4.3.9+6.1-10

Reason: Using commutative property of addition

[tex]a+b=b+a[/tex]

Step 5.10-10=0

Therefore, he makes an error in step 4.he wrote identity property instead of commutative property of addition.

Hence, option A is true.

Answer: A.He wrote identity property  instead of commutative in step 4.

There are 9 tennis balls in 3 cans. What is the rate of number of tennis balls to number of cans?

Answers

ivied the total number of tennis balls buy the number of cans to see how many tennis balls are in 1 can

9 divided by 3 = 3

 there are 3 tennis balls per can

 fraction would be 3/1  ( meaning 3 balls to 1 can)

Answer:

3/1

Step-by-step explanation:

I did the quiz and got it right

The capacity of Jose vase is 2,419 milliliters of water he poured 1 liter 299 milliliters of water into the empty vase then he ,added 398 milliliters.how much more water will the vase hold ?

Answers

Given:

Capacity of Jose vase = 2419 milliliters = 2.419 L
First pour = V1 = 1299 milliliters = 1.299 L
Second pour = V2 = 398 milliters = 0.398 L

Required: V3

Solution:

Our working formula is,

V1 + V2 +V3 = 2.419

Substituting the given, we get

1.299 + 0.398 + V3 = 2.419

Solving for V3,

ANSWER: V3 = 0.722 L or 722 milliliters

Determine the correct scientific notation form of the number. 0.00000000165

Answers

1.65X10^-9. Count how many places youd move the decimal. left is positive, right is negative.

when diving a bald eagle can reach a speed of 200 miles per hour. what is the speed in feet per second

Answers

it would be 26.4 as it would be diving down 200 miles per hour

Reflect across the y-axis, and then translate 8 units to the left. (-13, 1) (-14, -4) (-8, -8) (-9, -4)

Answers

Change the sign on each x value

Then

Add 8 to each x value

Eric biked 1 km 125 m on Monday. On Tuesday, he biked 375 m less than on Monday. How far did he bike both days

Answers

First, let's convert 1 km 125 m into metres.
1 km = 1000 m
1.125 km - 1,125 m

On Tuesday, Eric biked 375 metres fewer than on Monday.
1125 - 375 = 750 m
Eric biked 750 m on Tuesday.
On both days he biked 1125 + 750 = 1,875 m or
1 kilometre and 875 metres

what is the vertex , x coordinates , and x intercepts of y=2x ^2 + 4x-30

Answers

5.1      Find the Vertex of   y = x2-2x-15

Parabolas have a highest or a lowest point called the Vertex .   Our parabola opens up and accordingly has a lowest point (AKA absolute minimum) .   We know this even before plotting  "y"  because the coefficient of the first term, 1 , is positive (greater than zero). 

 Each parabola has a vertical line of symmetry that passes through its vertex. Because of this symmetry, the line of symmetry would, for example, pass through the midpoint of the two  x -intercepts (roots or solutions) of the parabola. That is, if the parabola has indeed two real solutions. 

 Parabolas can model many real life situations, such as the height above ground, of an object thrown upward, after some period of time. The vertex of the parabola can provide us with information, such as the maximum height that object, thrown upwards, can reach. For this reason we want to be able to find the coordinates of the vertex. 

 For any parabola,Ax2+Bx+C,the  x -coordinate of the vertex is given by  -B/(2A) . In our case the  x  coordinate is   1.0000  

 Plugging into the parabola formula   1.0000  for  x  we can calculate the  y -coordinate : 
  y = 1.0 * 1.00 * 1.00 - 2.0 * 1.00 - 15.0
or   y = -16.000

Samantha is painting the outside shape of a rectangular prism. It’s length is 18 centimeters, it’s width is 6 centimeters, and its height is 3 centimeters. What is the surface area of the box in square centimeters?

Answers

360 centimeters^2, the formula for SA is A=2(wl+hl+hw) so just input your numbers if you need work for this question. 

Of video game that originally cost $25.99 is on sale for 50% off if you have $14 would you have enough money to buy the video game explain (estimate)

Answers

Just round 25.99 to 26 and divide it by two. This gives you 13, which is less than 14.. You would be able to buy the video game.

Final answer:

After calculating 50% of $25.99, which is approximately $13, we find that the estimated sale price of the video game is $13. Therefore, if the student has $14, they will have enough money to buy the discounted video game.

Explanation:

The student is asking whether $14 would be enough to purchase a video game that is on a 50% off sale from its original price of $25.99. To find the sale price, we can take 50% of the original price and subtract it from the original price itself.

First, calculate 50% of $25.99: (0.50) imes $25.99 = $12.995. Since we are estimating, round the 50% value to $13. Now, subtract that from the original price to get the sale price: $25.99 - $13 = $12.99 (rounded to $13 for easier calculation).

In this estimate, the sale price is $13, which means that if the student has $14, they would have enough money to buy the video game on sale because $14 is greater than $13. Therefore, they will have $1 left after the purchase.

mississippi live streaming weather radio broadcast from NOAA weather stations gives local weather updates every 18 minutes. The first update is at 2:00pm. you turn on the radio on at 5:30pm. How long will you have to wait for the next weather update?

Answers

Since they give updates every 18 minutes, thus any time being a multiple of 18 after 2 pm will be the time they give update.

5:30 pm is 3 hours 30 minutes for 2 pm or 150 minutes from 2 pm.

In 150 minutes, there are eight 18 minutes that have passed and is remaining 6 minutes for the next multiple of 18.

Therefore, you have to wait for 6 minutes for the next weather update.
Note that 5:30pm is 3 hours and 30 minutes from 2:00pm. And 3 hours 30 minutes is equivalent to 3*60 + 30 = 210 minutes. Since the local weather updates every 18 minutes, we have to wait for multiples of 18 minutes for the next weather update. We can see that 18 goes into 210 eleven times with a remainder of 12. So we're 12 minutes pass the latest weather update at 5:00pm, meaning that we have to wait 6 minutes more for the next weather update.

Thus the answer is 6 minutes. 

Which point represents the fraction 7/10???

J
K
L
or
M
TYSM <33333333 :DDDDDDDD

Answers

Your answer will be M because you start at 0 and count 7 spaces to the right. You divide 7/10 and you get .7

What is the equation of the linear function represented by the table?


Graph:
x            y
–5         14
–2        11
1           8
4 5

Answers

Answer:

a y=  -x+9

Step-by-step explanation:

Write 1.04 x 10^2 in standard form

Answers

 1.04 x 10^2 in standard form = 104

----------------

Answer:

The required standard form is 104.

Step-by-step explanation:

Consider the provided number.

you can convert the scientific notation into long hand notation as shown:

If the exponent of 10 is a positive number then you need to move the decimal point right as much as the exponent value.

If the exponent of 10 is a negative number then you need to move the decimal point left as much as the exponent value.

Now consider the provided number.

[tex]1.04 \times 10^2[/tex]

Here the power of 10 is positive, so move the decimal point right as shown.

[tex]104[/tex]

Hence, the required standard form is 104.

Look at the following numbers:
HELP ASAP (ONE QUESTION)
− 4, −1, 0, 4

Which pair of numbers has a sum of 0?

4, −1
−4, 0
−1, 0
−4, 4

Answers

The answer is -4, 4.
Because -4 + 4 will become 0.



Answer:

−4, 4

Step-by-step explanation:

Is 15/2 greater then square root of 55

Answers

Final answer:

Yes, 15/2 is greater than the square root of 55.

Explanation:

To compare whether 15/2 is greater than the square root of 55, we can convert both expressions to decimal form.

15/2 = 7.5 and √55 ≈ 7.416. Therefore, 15/2 is greater than the square root of 55.

Who sets the price in a monopolistic competition?

Answers

The producer sets the price in a monopolistic competition.

Further Explanation:

Monopolistic Competition:

Monopolistic competition is a type of competition where a large number of seller offer similar but not perfect substitute products. Each producer offers a different product at different price based on the exclusive characteristic of the product. Major characteristics of monopolistic competition are as follows:

• Different product  

• Large number of producers  

• Freedom of entry and exit

• Market power (Producer)

Setting the price in monopolistic competition:

In monopolistic competition, the producer has the power to pricing power. In this type of competition, the producers offer different products as compared to other competitors and charge the customer according to their product differentiation. Therefore, they have the power to set and change the price on the basis of their offered product.

Thus, the producer sets the price in a monopolistic competition.

Learn more:

Learn more about the perfectly competitive market https://brainly.com/question/8753703 Learn more about the marginal benefit https://brainly.com/question/2508491 Learn more about the supply and demand https://brainly.com/question/9880846

Answer details:

Grade: Middle school

Subject: Economics

Chapter: Types of market

Keywords: Sets, price, monopolistic, competition, market, types of market, competition, producers, freedom of entry and exit, economics, demand, supply, customer.  

In monopolistic competition,

The price is typically set by individual firms or businesses rather than a centralized authority.

We have,

Each firm has some degree of market power, allowing them to differentiate their products or services from their competitors.

Firms in monopolistic competition have the freedom to set their prices based on factors such as production costs, demand for their product, market conditions, and desired profitability.

They aim to find the price that maximizes their own profits or achieves their specific business objectives.

However, it's important to note that in monopolistic competition, there is competition among firms, albeit with differentiated products.

As a result, firms must also consider the prices set by their competitors to remain competitive and attract customers.

Thus,

In monopolistic competition, the price-setting decision lies with the individual firms, balancing their own considerations and market dynamics to determine the optimal price for their product or service.

Learn more about the monopolistic competition here:

https://brainly.com/question/29617378

#SPJ6

Amanda purchased a storage cube that has a volume of 4 cubic feet. She wants to put it on a bookshelf that is 12 inches tall. Will the cube fit? Explain

Answers

The answer is No, the cube will not fit because 4 cubic feet is 48 inches, and the bookshelf is only 12 inches, Therefore, the cube is basically larger than the bookshelf. Hope this helps and sorry I’m late.
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