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igomit [66]
2 years ago
11

Shelley's pet food store sold one customer 5 peanut butter biscuits for $3. She sold another customer 7 beef treats for $4.20. W

rite a proportion that compares the sales of these two items, and find the cross products. The cross products are both equal to
Mathematics
3 answers:
arsen [322]2 years ago
7 0

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

\dfrac{5}{3}

For beef, the ratio is

\dfrac{7}{4.2}

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.

DaniilM [7]2 years ago
4 0

Answer:

Hello!!! erz here ^^

Step-by-step explanation:

21!

Hope this helps!! :D

Lina_smartkid2 years ago
0 0

21 I took the test!

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