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Chapter 1: Q12. (page 21)

Use the percent proportion to find the following number.

14 is 20% of what number?

Short Answer

Expert verified

14 is 20% of 70.

Step by step solution

01

Step 1. Definition of percent.

Percent of a number is defined as the ratio of number and 100.

02

Step 2. Formula Used.

The ratio of part x of some number y is equal to the percent is written as.

xy=p100

03

Step 3. Find the percent proportion.

Percent = 20, x = 14 and y = ?

xy鈥�=p100鈥�鈥�鈥�14y=20100鈥�crossmultiply14脳100=20脳y1400=20y鈥�鈥�dividebothsideby20140020=20y2070=yy=70

Hence, 20% of 70 is 14.

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