Question

jill earns $24 per hour. how much does jill earn for 7 hours ? how many hours would jill need to work to earn 120?

Answer 1

Let x be the hours worked by Jill.

We'll have that the expression that represents Jill's earnings is:

$24x$

For 7 hours,

$24(7)=168$

Jill will make $168

If the earnings were 120,

$24x=120$

Solving for x :

$\begin{gathered} 24x=120 \\ \rightarrow x=\frac{120}{24} \\ \Rightarrow x=5 \end{gathered}$

Therefore, Jill would need to work 5 hours to earn