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mash [69]
3 years ago
6

suppose a refrigerator sells for $700 per and costs $85 a year for electricity. write the expression for the cost to buy and run

the refrigerator for x years?
Mathematics
2 answers:
love history [14]3 years ago
8 0

Cost of refrigerator = $700

Cost of electricity per year = $85

So cost of electricity for x years = $85x

Run the refrigerator for x years

Total cost to buy and run the refrigerator for x years = cost of refrigerator + cost of electricity for x years

Total cost to buy and run the refrigerator for x years = 700 + 85x


emmainna [20.7K]3 years ago
7 0
X=700R+85Y
R= Number of Refrigerators
Y= Number of Years 

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3 years ago
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Elodia [21]

Answer:

1. Both Dan and Tess are correct.

    Tess:

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         24.5 - 3.675 = 20.825

         0.1 * 20.825 = 2.0825

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    Dan:

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    Both Dan and Tess used methods that provided the correct answer. Both methods follow the same path, but Dan's method simply took less steps since he used percentages that would take out the correct number, unlike Tess' percentages which would give you the number that you would then need to take out.

2. First, convert Amy's and Mike's numbers to a decimal of the whole so it is easier to compare the numbers.

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