Exercise 1 Page 963

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 want to find 26 % of 500. Therefore, we have that p= 26 and b= 500.

a/b=p/100

SubstituteII

p= 26, b= 500

a/500=26/100

ReduceFrac

a/b=.a /2./.b /2.

a/500=13/50

MultEqn

LHS * 500=RHS* 500

a=13/50* 500

▼

Evaluate right-hand side

MoveRightFacToNum

a/c* b = a* b/c

a=13* 500/50

MovePartNumLeft

a* b/c=a*b/c

a=13*500/50

CalcQuot

Calculate quotient

a=13* 10

Multiply

Multiply

a=130

This means that 130 is 26 % of 500.