Question

Diana baked 39 cookies with 3 scoops of flour. How many scoops of flour does Diana need in

order to bake 169 cookies? Solve using unit rates.

Answer 1

Diana needs 13 scoops of flour to bake 169 cookies.

Explanation:

well, first you need to find the unit rate.

if 3 scoops of flour makes 39 cookies,

then 1 scoop of flour makes 13 cookies. (39/3)

next, since the unit rate is 13 cookies per flour-scoop, divide 169 by 13 to get your answer.

169/13 = 13