SOLUTION: George saves 18% of his total gross weekly earnings from his 2 part-time jobs. He earns $6.25 per hour from one part-time job and $7.50 per hour from the other part-time job. Georg

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Question 979948: George saves 18% of his total gross weekly earnings from his 2 part-time jobs. He earns $6.25 per hour from one part-time job and $7.50 per hour from the other part-time job. George works a total of 40 hours between the two jobs each week. What additional information is needed to determine the amount of his earnings he saves each week?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Try to analyze the problem and assign variables to any quantity which is not known. The question is, how much money does he save each week?

$6.25/hour job;
$7.50/hour job;
40 hours/week total work time;
Save 18% of gross wages;

x, hours at lower paid job.
y, hours at better paid job.
x%2By=40
.
6.25%2Ax%2B7.5%2Ay, the weekly wages.
highlight_green%28%2818%2F100%29%286.25x%2B7.5y%29%29, Amount Saved Each Week. This is what is asked to find or evaluate.

That should help.

You do not need to be given both x and y;
only x OR y needs to be known or given.