Marisa wants to buy a DVD player that runs for at least $150. She already saved $ 80 and plans to save an additional $ 10 each week. Write an inequality that represents this problem and explain your answer in detailed steps.

Question

Mathematics

Levi Bass

28 December, 22:10

Marisa wants to buy a DVD player that runs for at least $150. She already saved $ 80 and plans to save an additional $ 10 each week. Write an inequality that represents this problem and explain your answer in detailed steps.

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Answers (1)

Know the Answer?

Israel Barber · Answer 1

X=number of weeks

the inequality is:

10x+80≥150

Now, we solve this inequality:

10x+80≥150

10x≥150-80

10x≥70

x≥70/10

x≥7

Solution: Marisa needs to save at least 7 weeks for she can buy the DVD