Question

1.) In a class of 45 students , 80% received A’s on a Math test . How many students received an A?

2.) Mary spent 15 dollars. If this was 20% of her earnings, how much money did she earn ?

Answer 1

Explanation:

1) 45 times 0.8 (which is equivalent to 80 percent) is 36 students.

2) 15 divided by 0.2 is 75, so she earned 75 dollars