Page 192 - Math Course 1 (Book 1)

Percent Proportion

Find the Whole
4 n
=
14 100 Ninety is 24% of what number?

4 • 100 = 14 • n Find the cross products. A. 21.6
B. 375
400 = 14n Simplify C. 2160
400 14n D. 26.67
= Divide each side by 14.
14 14
Answer
28.6 = n Simplify.

Serena Williams won about
Answer
28.6% of the tournaments.

Your Turn!

Find the Percent
Twelve is what percent of 40? Apply the Percent Proportion

A. 333%
B. 30% BAKE SALE
C. 4.8% At the school bake sale, 23 chocolate chip
D. 3.33% cookies, 18 oatmeal raisin cookies, and 7 peanut
butter cookies were sold. If the sale started with
Answer a total of 90 cookies, what percent of the cookies
were sold?

A. 53.3%

B. 7.8%

What percent of 20 is 35? C. 1.9%

A. 1.75% D. 48%
B. 7%
C. 57% Answer
D. 175%

Answer

Find the Part

What number is 42.5% of 90?

A. 2.12
B. 0.47
C. 38.25
D. 3825

Answer

184