## Prealgebra (7th Edition)

65 % of what number is 52 ? 65 is percent what number is base 52 is amount $\frac{52}{b}$=$\frac{65}{100}$ set cross product equal 65$\times$ b = 52 $\times$ 100 Multiply 65b= 5200 divide both sides by 100 $\frac{65b}{65}$ = $\frac{5200}{65}$ b= 80 52 is 65 % of 80.