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21 December, 05:36

Nicky is considering two different companies for textbook rentals. For

what number of months will Company B cost less?

• Company A charges a one-time account fee of $20 and a rental fee of

$15 per month

• Company B charges $20 per month with no other fees.

Show your work.

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Answers (1)
  1. 21 December, 05:50
    0
    if youre answer has to be a whole number it would be 3 otherwise it would be x<4 (so anything less than 4)

    Step-by-step explanation:

    so because we are trying to find which company is less, we need to set up in inequality.

    so first lets do company A

    because 15 is our reoccuring fee, its going to be the coeifficient

    so the equation would be

    A - 15x + 20

    now lets do company B

    because it only 20 every month we dont need to have a constant which means the equation for B would be

    B - 20x

    so lets put it all together

    15x + 20 > 20x (remember our B side has to be less)

    now lets solve it

    20 > 5x

    we know that if x = 4 then the two would be equal, which means our answer would have to be 3 months.

    now always check your work.

    15 (3) + 20 = 65

    20 (3) = 60
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