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Sladkaya [172]
4 years ago
7

How many cans of paint are needed to cover an area of 2200 square units if one can of paint covers in area 400 square units

Mathematics
1 answer:
sergij07 [2.7K]4 years ago
5 0

Answer:

6

Step-by-step explanation:

You have a total area of 2,200 sq units to cover... and each can of paint covers 400 sq units.  So, you'll need:

2200 sq units / 400 sq units/can = 5.5 cans

In such problems, we always round up, since you will need 5 full cans of paint, and half of a 6th can.

So, in total you will need 6 cans of paint to cover all 2,200 sq units.

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In a group of 60 students, 20%are girls. How many are boys?
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Answer: About 12 of those 60 students are boys.

To find the percent, you'll convert 20% to a decimal.

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Then, multiply 60 by 0.2

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That's one way, another way is:

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Then multiply 60 by 1/5.

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Lastly, divide 60 by 5

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<em>Any questions? Comment down.</em>

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Step-by-step explanation:

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3 years ago
PLLSSS REALLY URGENT <br> If g(x)=3x+4, determine n that g(-3)=g^-1(n).
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Answer:

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=>

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