Question

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.

Answer 1

10 minutes

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