danashawilliamson198 danashawilliamson198

01-05-2020
Mathematics

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Use the percent proportion to solve each problem 25 is 80% of what number

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Chelboy Chelboy

02-05-2020

Answer:31.25

Step-by-step explanation:

a is the unknown number

80% of a=25

80/100 x a=25

80a/100=25

Cross multiplying we get

80a=25 x 100

80a=2500

Divide both sides by 80

80a/80=2500/80

a=31.25

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