Question

Grace spent 15 minutes on her math homework. That was 30% of the total number of minutes she spent doing homework.

Answer 1

Answer:

50 minutes

Step-by-step explanation:

let x be the total amount of minutes spent on Grace's math homework.

15 = 30% of x

15 = 0.3x

15/0.3 = 0.3x/0.3

50 = x