Sylvia needs at least $310 for a new audio system. She has already saved 120$. She earns 10$ per hour at her part time job. Write and solve an inequality to find how many hours she will need to work to buy the system. Interpret the solution.

Question

Skyler

Mathematics

5 September, 17:27

Sylvia needs at least $310 for a new audio system. She has already saved 120$. She earns 10$ per hour at her part time job. Write and solve an inequality to find how many hours she will need to work to buy the system. Interpret the solution.

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Answers (1)

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Mattie · Answer 1

310 = 120 + 10x

Step-by-step explanation:

310 represents the final number she needs to by the audio system

120 represents the money she has already saved

10 represents the amount of money she will earn in x amount of hours; multiplied by x

Example, if she worked 2 hours;

310 = 120 + 10 (2)

310 = 140

She would have to work more obviously to meet the $310 criteria