SOLUTION: nine blenders cost $200. the cost of 21 blenders would be?

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Question 635138: nine blenders cost $200.
the cost of 21 blenders would be?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

nine blenders cost $200.

the costhighlight%28x%29 of 21 blenders would be?

Inquiry Sets Up the proportion:

 9%2F200+=+21%2Fx    |Cross Multiply to solve for x