Question

Chang needs at least $125. He has saved &45 and he makes $7 an hour. What is the minimum number of complete hours he must work to have enough money

Answer 1

Minimum number of complete hours he has to work=12 hours

Explanation:

The total amount of money he needs can be expressed by the equation;

Total amount he needs=Amount saved+Amount he makes an hour.

Where;

Total amount he needs=$125

Amount saved=$45

Amount he makes an hour=$7×Number of hours(h)=7h

Substituting in the expression above;

125=45+7h

7h=(125-45)

7h/7=80/7

h=11.43 hours

Minimum number of hours he has to work=11.43 hours

Minimum number of complete hours he has to work=12 hours