Question

PLEASE HELP ME IM CONFUSED levi earns $6.25 per hour working after school. he needs at least $143.75 for a stereo system. how many hours h does he have to work to reach his goal?

h/6.25 > 143.75; h > 23; 23 hours
6.25h ≤ 143.75; h ≤ 23; 23 hours
h/6.25 < 143.75; h < 23; 23 hours
6.25h ≥ 143.75; h ≥ 23; 23 hours

Answer 1

143.75/6.25=23 hours

Answer 2

6.25h ≥ 143.75; h ≥ 23; 23 hours

Explanation:

Levi earns $6.25 per hour after school. Since he needs at least $143.75 to get a stereo the amount he wants should be equal to or greater than $143.75.

Let

h = number of hours worked

The expression can be written as follows:

6.25 × h ≥ 143.75

6.25 h ≥ 143.75

divide both sides by 6.25

h ≥ 143.75/6.25

h ≥ 23 hours