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Fudgin [204]
3 years ago
5

You paint four walls. Each wall is a rectangle with a length of 20 feet and a height of 12 feet. One gallon of paint covers abou

t 320 square feet. How many gallons of paint do you need in order to cover the walls?
Mathematics
1 answer:
Naddik [55]3 years ago
5 0

Answer:

3 gallons

Step-by-step explanation:

Each wall 12 x 20 = 240 feet squared

4 walls =  4 x 240 = 960 squared feet

960 divided into 320 = 3

1 gallon --------320

1 gallon------------320

1 gallon-----------320

                    3 gallons----------960

 

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Jeffrey is using a copy machine to make posters for a school play. The machine prints the posters at a constant rate. After 3 mi
jasenka [17]

Answer:

B: 11 minutes.

Step-by-step explanation:

So, we know that the machine prints at a constant rate.

After 3 minutes, the machine prints 108 posters.

So, let’s find the <em>unit rate. </em>We will divide the output over the input. So:

108\text{ posters}/3\text{ minutes}=36\text{ posters/min}

So, the unit rate of the machine is 36 posters per minute.

We can write an equation. If t represent the number of minutes and p represent the amount of posters, then:

p=36t

Gives the amount of posters p and t minutes.

We want to know how long it will take Jeffrey to make 396 posters.

So, we can substitute 396 for p and solve for t. Hence:

396=36t

Divide both sides by 36:

t=11

Therefore, it will take Jeffrey 11 minutes to make 396 posters.

7 0
3 years ago
Please help!!! will mark brainliest!!!!!!
elixir [45]

The compound interest will be equal to $13.57.

<h3>What is compound interest?</h3>

The interest on a loan or deposit that accrues on both the initial principal and the accumulated interest from prior periods is known as compound interest.

The compound interest will be calculated by:-

CI = P(1+\dfrac{r}{12})^{12t}-P

CI = 250(1+\dfrac{0.053}{12})^{12}-250

CI = $13.57

Therefore the compound interest will be equal to $13.57.

To know more about Compound interest follow

brainly.com/question/24924853

#SPJ1

4 0
2 years ago
4x-2=-6 <br>how to solve this math problem​
Bumek [7]

Answer:

The answer should be -8

Step-by-step explanation

3 0
3 years ago
80.55 rounded to the nearest tenth
motikmotik

80.55


5 rounds up so 80.6 is 80.55 rounded to the nearest tenth.

5 0
3 years ago
Read 2 more answers
What is (-2)(3 4/7)?
Andre45 [30]
-7 and 1/7
hope this helps!!
7 0
3 years ago
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