Suppose a refrigerator that sells for$700 costs $85 a year for electricity. Write an expression for the cost to buy and run the refrigerator for x years.

Question

Mathematics

Chase

8 March, 05:43

Suppose a refrigerator that sells for$700 costs $85 a year for electricity. Write an expression for the cost to buy and run the refrigerator for x years.

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Answers (2)

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Tucker Robbins · Answer 1

First refrigerator cost

C (x1) = 700+85x

C (10) = 700+850

C (10) = 1550

refrigerator 2nd

C (x2) = 1000+25x

C10) = 1000+250

C (10) = 1250

Now you know it.

same cost

700+85x=1000+25x

60x=300

x = 5 years

Dustin · Answer 2

Step-by-step explanation:

700 + 85x <== = ur expression