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3 years ago

10

you purchase a cell phone for $125. The value of the cell phone decreases by about $20 annually. write a function that models th

e value of the cell phone over time. then find the value of the cell phone after 3 years.

1 answer:

natali 33 [55]3 years ago

7 0

Y=125-20x ; the value of the cell phone after three years is $65.

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We can use a proportion to solve.

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2 years ago

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