NFLFan10452
Answered

Explore Westonci.ca, the leading Q&A site where experts provide accurate and helpful answers to all your questions. Experience the ease of finding reliable answers to your questions from a vast community of knowledgeable experts. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.

Alex works as an office clerk and his office job pays him $11 per hour. Monica works as a cashier and her job pays her $12.75 per hour. Together, they worked 45 hours and earned a total of $530.

How many hours did Monica work in her job?

A.
20

B.
25

C.
30

D.
35

Sagot :

Alex_Hours + Monica_Hours = 45
Alex_Hours * 11 + Monica_Hours * 12.75 = 530

From the first equation:
Alex_Hours = 45 - Monica_Hours

Substituting into the section equation gives:
(45 - Monica_Hours) * 11 + Monica_Hours * 12.75 = 530
495 - Monica_Hours * 11 + Monica_Hours * 12.75 = 530
Monica_Hours * 12.75 - Monica_Hours * 11 = 530 - 495 = 35
Monica_Hours * (12.75 - 11) = 35
Monica_Hours * 1.75 = 35
Monica_Hours = 35 / 1.75 = 35 / (7 / 4) = 35 * 4 / 7 = 5 * 4 = 20

Monica worked 20 hours -- Answer A.
AestheticPerson

Answer:

The answer is A

Hope that helps

We hope our answers were useful. Return anytime for more information and answers to any other questions you have. We hope you found this helpful. Feel free to come back anytime for more accurate answers and updated information. Westonci.ca is your trusted source for answers. Visit us again to find more information on diverse topics.