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2 years ago

Kelli and Karl each have a job. Kelli earns $20 an hour. She also receives a $100 weekly bonus.

Mathematics

2 answers:

ad-work [718]2 years ago

7 0

Equation for Kelli's earning = 20x + 100
Equation for Karl's earning = 25x + 50

Now, 20x +100 = 25x +50
25x-20x = 100-50
5x = 50
x = 10

So, your answer is 10 hours.

Hope this helps!

Gnesinka [82]2 years ago

7 0

20h+100=25h+50
20h+50=25h
50=5h
10=h
They must work 10 hours a week to earn the same amount.

Hope this helps :)

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3 years ago

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Answer: Last Option

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Cramer's rule says that given a system of equations of two variables x and y then:

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