The table below models the cost, y, of using a high-efficiency washing machine and a standard washing machine over x number of years. Which equation represents the cost of the high-efficiency washing machine over a given number of years? Which equation represents the cost of the standard washing machine over a given number of years? After how many years of use would the washing machines cost the same amount? Which washing machine would be the more practical purchase if kept for 9 years?

Question

Natalee Burnett

Mathematics

25 December, 02:50

The table below models the cost, y, of using a high-efficiency washing machine and a standard washing machine over x number of years. Which equation represents the cost of the high-efficiency washing machine over a given number of years? Which equation represents the cost of the standard washing machine over a given number of years? After how many years of use would the washing machines cost the same amount? Which washing machine would be the more practical purchase if kept for 9 years?

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Amiah Morgan · Answer 1

1. Which equation represents the cost of the high-efficiency washing machine over a given number of years? y=25x+500

2. Which equation represents the cost of the standard washing machine over a given number of years? y = 30x + 400X

3. After how many years of use would the washing machines cost the same amount? 20

4. Which washing machine would be the more practical purchase if kept for 9 years? standard machine