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PSYCHO15rus [73]
3 years ago
11

The cost, c, of paper towels, based on the number of rolls, r, is given by this equation.

Mathematics
2 answers:
Amiraneli [1.4K]3 years ago
4 0

Answer:

I think the cost for each roll is 1.29

Step-by-step explanation:

Hope this helps

Travka [436]3 years ago
4 0

\\ \sf\longmapsto c=1.29r

  • cost is 1$

\\ \sf\longmapsto 1=1.29r

\\ \sf\longmapsto r=\dfrac{1}{1.29}

\\ \sf\longmapsto r=0.7

  • Cost of 0.7 rolls is 1

Cost of 1 roll

\\ \sf\longmapsto \dfrac{1}{0.7}

\\ \sf\longmapsto \dfrac{10}{7}

\\ \sf\longmapsto 1.4\$

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Step-by-step explanation:

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<u>Alternative method:</u>

First, subtract 54.19 from 70.82.

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