Question

28% of what number is 3 1/2 ?

Answer 1

multiply

Answer 2

you multiply

Answer 3

28% of what number is 3 1/2

"of" means multiply
"is" means equals
" what number " is represented by x

turn your percent to a decimal and your mixed number into a decimal

.28*x = 3.5
.28x = 3.5 -- divide both sides by .28
x = 3.5/.28
now just solve for x