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3 years ago

8

The cost of a phone call at a hotel is determined by the formula

1 answer:

dimulka [17.4K]3 years ago

8 0

C = $5.85

$5.85 = 0.35t + 0.6
-.6 -.6

$5.25 = 0.35t
------- --------
.35 .35

15 = t

15 minutes

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