Question

Malik earned $2,344.55 fixing computers. He charged $35.50 per hour. Which expression does NOT use appropriate compatible numbers to estimate the total number of hours he worked?

Answer 1

A, B , C do NOT use appropriate compatible numbers to estimate the total number of hours he worked.

Explanation:

Malik earned $2,344.55

Wages per hour $ 35.50

No of hours = Total wages / wages per hour= $2,344.55/ 35.50 = 66.043

Lets analyze all the options

A. 2,400 ÷ 30= 80

B. 2,400 ÷ 40= 60

C. 2,000 ÷ 40= 50

D. 2,000 ÷ 30= 66.67

A, B , C do NOT use appropriate compatible numbers to estimate the total number of hours he worked.

Only D uses appropriate compatible numbers to estimate the total number of hours he worked.