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3 years ago

9 cans of paint are needed to

Mathematics

1 answer:

Black_prince [1.1K]3 years ago

6 0

Answer:

Step-by-step explanation:

Write and solve an equation of ratios:

9 4

----- = -----

x 10

Then 4x = 90, and x = 22.5

It will take exactly 22.5 cans of paint to cover 10 rooms. The painter must buy 23 cans.

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