Question

Mrs.Leonard can grade 8 math test in 10 minutes. How long will it take her to grade 72 math test? I need answers today!!!!

Answer 1

90 minutes (1 hour and 30 minutes)

Explanation:

Using cross-multiplication, I wrote down the equation 8 tests / 10 mins = 72 tests / x minutes. After cross multiplying, you'd get 720 = 8x. To get the answer, you'd then divide 8x and 720 by 8 to isolate the x, wounding up with 90 minutes.

Hope this helped!

Answer 2

`It\:will\:take\:her\:57,6\:minutes`

Explanation:

`(72*8)/(10)=57,6`