Question

30 POINTS!!!

Jamal earns $7 an hour Helping his neighbors. He wants to earn more than $105 altogether. He has already earned $63. Which graph shows the remaining number of hours Jamall could work to earn more than $105 helping his neighbors. He wants to earn more than $105 altogether. He has already earned $63. Which graph shows the remaining number of hours Jamall could work to earn more than $105?

Answer 1

Graph 3

Explanation:

Given : Jamal earns $7 an hour Helping his neighbors.

He wants to earn more than $105 altogether.

He has already earned $63.

To Find: Which graph shows the remaining number of hours Jamall could work to earn more than $105?

Solution:

Let x be the number of the remaining number of hours Jamal could work to earn more than $105.

He earns in 1 hour = $7

He earns ion x hours = $7x

He already has money = $63

He wants to earn more than $105 altogether

So, equation becomes :
`63+7x\geq 105`

`7x\geq 105-63`

`7x\geq 42`

`x\geq (42)/(7)`

`x\geq 6`

Thus the remaining number of hours Jamal could work to earn more than $105 must be 6 or more than 6 hours .

Since 6 is included . So, Graph 3 is correct.

Hence Graph 3 shows the remaining number of hours Jamal could work to earn more than $105 must be 6 or more than 6 hours.