Exercise 60 Page 143

In the percent proportion, the ratio of the part a to the whole b is equal to the percent p written as a fraction. a/b=p/100 Given any two of these three variables, we can find the third one. In this exercise, we are given the values a= 100 and b= 8, and we are looking for the percent p.

a/b=p/100

SubstituteII

a= 100, b= 8

100/8=p/100

ReduceFrac

a/b=.a /4./.b /4.

25/2=p/100

MultEqn

LHS * 100=RHS* 100

2500/2=p

CalcQuot

Calculate quotient

1250 = p

RearrangeEqn

Rearrange equation

p=1250

This means that 100 is 1250 % of 8.