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Helga [31]
4 years ago
12

Write an inequality and use substitution to solve the following problem: Chris has 45 dollars saved up. He currently makes 5 dol

lars each day walking dogs. Chris wants to purchase a new stereo for 72 dollars. Which of the following numbers of days worked will allow Chris to purchase the stereo?
Mathematics
2 answers:
Vika [28.1K]4 years ago
4 0

Answer:

5.4 days (6 days)

Step-by-step explanation:

First set up an equation. (x represents days)

5 dollars a day = 5x ; Already has 45 = +45 ; Needs 72 = =72

That means your equation is...

5x + 45 = 72

Now solve for x.

5x = 27          Subtract 45 from both sides.

x = 5.4          Divide both sides by 5.

This means he will have to work for at least 6 days.


I hope this helped. :)   (I love these kinds of problems!)

oee [108]4 years ago
3 0

Answer:

6 and 8 days if your on  moby max

Step-by-step explanation:

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