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Bone-shaped treats are 5 for $3.50 at Shelley’s store and Sarah wants to buy 12. She set up and solved this proportion to find how much they would cost. Describe her error and find the correct solution.

5
3.5
=
12
x
3.5x = 60
x = $17.14

Respuesta :

The amount that she will pay is $8.40

The mistake that Sarah made was that she didn't divide $3.50 by 5.

Based on the information that's given in the question, the correct solution will be:

= ($3.50/5) × 12

= $0.70 × 12

= $8.40

Therefore, the amount that she will pay is $8.40

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