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nadezda [96]
3 years ago
14

Jordan is playing a video game. For every 35 stars she collects, she gets 4,000 points. Her record is 86,000 points. Which of th

e following proportions could she use to determine x, the number of stars she needs to tie her record?

Mathematics
2 answers:
notka56 [123]3 years ago
7 0
Hello! I can help you with this! So, she get's 4,00 points for every 35 stars she gets. That proportion would be 35/4,000 = x/86,000 or it could be 4,000/35 = 86,000/x, because you don't know the amount of stars collected, but you know the total amount of points she earns. The proportions can be formatted a bit differently as long as they give you the same answer. The answers are A and E.
Mariana [72]3 years ago
3 0
E. 
Fractions are just division.
In order for her to find the number of stars she needs to divide to find out how many she needs. 
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Answer:

5 hours

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Given

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Required

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Expand:

x^2 -5x + 2x -10 = 0

Factorize:

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(x + 2)(x -5) = 0

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x = -2\ or\ x = 5

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<em>So, x = 5 hours</em>

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Answer:

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