Keith spent 2 1/2 of hours doing chores. He spent 1/4 of that time dusting. How much time did Keith spend dusting? (number model)​

Keith spent 37 and a half minutes dusting.

Step-by-step explanation:

Given that Keith spent 2 1/2 of hours doing chores, and I have spent 1/4 of that time dusting, to determine how much time did Keith spend dusting, the following calculation must be performed:

1/2 = 0.5

1/4 = 0.25

2.5 x 0.25 = X

0.625 = X

1 = 60

0.625 = X

0.625 x 60 = X

37.5 = X

Therefore, Keith spent 37 and a half minutes dusting.

  n=   0.0000 - 0.3750 i  

  n=   0.0000 + 0.3750 i

step-by-step explanation:

one of these should be correct