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Phantasy [73]
3 years ago
9

Because of these ratios what is the formula for this slope?

Mathematics
1 answer:
Kazeer [188]3 years ago
8 0
Answer: (Y2 - Y1)/(X2 -X1)
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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.

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If we take cross product of these items,

\dfrac{5}{3}=\dfrac{7}{4.2}\\\\5\times 4.2=3\times 7\\\\21=21

It implies, that the sale is in true proportion. From the cross product, we find that it is equal.

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