Question

Each week John earns X dollars per hour for the first 40 hours that he works thatweek and Y dollars for each additional hour. How much does John earn per hour forthe first 40 hours?(1) Y=15X(2) If John works 45 hours in a week, he earns a total of $570 that week

Answer 1

Answer: John earn $4.95 per hour for the first 40 hours.

Explanation:

Since we have given that

Amount he earned for the first 40 hours that he works that week be 'x'.

Let the amount earned for each additional hour be 'y'.

If John works 45 hours in a week, he earns a total of $570 that week.

According to question, we get that

`40x+5y=\$570\\\\8x+y=\$114`

As we have given that

y=15x.

so, substituting the above value we get that

`8x+15x=114\\\\23x=114\\\\x=(114)/(23)\\\\x=\$4.95`

Hence, John earn $4.95 per hour for the first 40 hours.