A construction company needs to remove 4 1/4 tons of dirt from a construction site. They can remove 7/10 tons of dirt each hour. What is the total number of
hours it will take to remove the dirt?
Write your answer as a mixed number in simplest form.

6 1/14 hours

step-by-step explanation

Let x be the total number of hours it will take to remove the dirt from the

4 1/4 can be written as 17/4

17/4 tons:x hours

7/10 tons: 1hour

This implies that

Cross multiply

Multiplying through by 10

Dividing through by 7

step-by-step explanation: you take each of the numbers and divide by the amount then you take the range

correct answer:

i^31 = -i