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Please Help!! Grade 7 Math!! K12!!

Please Help!! Grade 7 Math!! K12!!-example-1
User Nera
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2 Answers

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28 votes

Set up your polynomial, rule of thumb, all variables get multiplied by x

Total cost = x($0.50/earring) + $14 handbag

Substitute 0,5,10, and 15 for x and see which one matches the answer choices

Explanation:

User Akjoshi
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16 votes
16 votes

Answer:

See below

Explanation:

To find the total cost we need to know whats fixed, and what's variable (changing)

Fixed: $14 handbag

Variable: $0.50 / earring

Set up your polynomial, rule of thumb, all variables get multiplied by x

Total cost = x($0.50/earring) + $14 handbag

Substitute 0,5,10, and 15 for x and see which one matches the answer choices

User Mitesh K
by
2.7k points