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McGraw-Hill Companies,
1. PHONES Acme Phone Company charges $21 a month plus $0.05 a minute. Belltone
Phones charges $15 a month plus $0.11 a minute. Write and solve an equation to
determine how many minutes a month you must use for the costs of using either
company to be equal.

Respuesta :

chetankachana

Answer:

10 minutes

Step-by-step explanation:

Let's call the Acme Company A and Beltone as B

Let m be the number of minutes

A = $21 + $0.05m

B = $15 + $0.11m

  • A = B
  • $21 + $0.05m = $15 + $0.11m
  • $6 + $0.05m = $0.11m
  • $6 = $0.06m
  • 10 = m

It will take 10 minutes for both prices to be equal.

-Chetan K

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