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2 answers:
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Answer:
And then we conclude that for the first job he works 7 hours and for the second job 11 hours
Step-by-step explanation:
We can define the following notation:
represent the number of hours worked for one job
represent the number of hours worked for the other job
represent the hourly payment for the first job
represent the hourly payment for the other job
And we can define the following equations:
(1) represent the toal number of hours worked
(2) represent the total amount earned
From equation (1) if we solve for X we got:
(3)
Replacing equation (3) into equation (2) we got:
And after solve the equation we can find the value of Y:
And solving for X from equation (3) we got:
And then we conclude that for the first job he works 7 hours and for the second job 11 hours