Posted by **Amy~** on Thursday, September 16, 2010 at 3:57pm.

If Sandy usually earns $88 plus 11% sales each week. What if she earns $154 one week. What is the % sales she earned that week when she earned $154?

Would the answer be 600?

- Math -
**Ms. Sue**, Thursday, September 16, 2010 at 4:30pm
Yes. That's correct.

- Math -
**Amy~**, Thursday, September 16, 2010 at 4:33pm
Would you know how to get the answer 600 because I solved it differently and did not get 600

- Math -
**Ms. Sue**, Thursday, September 16, 2010 at 4:35pm
Here's what I did.

154 - 88 = 66

0.11x = 66

x = 600

- Math -
**Amy~**, Thursday, September 16, 2010 at 4:38pm
I thought I had cross multiply.

88/154 = .11/x

- Math -
**Ms. Sue**, Thursday, September 16, 2010 at 4:41pm
Your fractions for the proportion are not equivalent.

Do you understand what I did?

- Math -
**Amy~**, Thursday, September 16, 2010 at 4:55pm
yes

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