Nine blenders cost $200. The cost of 21 blenders would cost how much?
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Originally Posted by shelbylynn Nine blenders cost $200. The cost of 21 blenders would cost how much? Hi shelbylynn, Set up a proportion this way: $\displaystyle \frac{9}{21}=\frac{200}{x}$ or 9 blenders is to $200 as 21 blenders is to $x: $\displaystyle \frac{9}{200}=\frac{21}{x}$
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