Diana brought 8 3/5 yards of blue velvet material for a dress and coat. She used 3 4/5 yards on the coat. How much is left for t
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Given that,
Shelley's pet food store sold one customer 5 peanut butter biscuits for $3. She sold another customer 7 beef treats for $4.20.
For peanut, the cost is ratio is
For beef, the ratio is
If we take cross product of these items,
It implies, that the sale is in true proportion. From the cross product, we find that it is equal.