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Checking account A charges a monthly service fee of $3 and a per-check fee
of $0.02, while checking account B charges a monthly service fee of $2 and a
per-check fee of $0.03. How many checks would a person have to write for
the two accounts to cost the same?
O A. 22
O B. 100
O, C. 0
O D. 35

Respuesta :

Parrain

Answer: B. 100

Explanation:

To find this out, we shall assume that the number of checks that should be written for the two accounts to cost the same will be x.

The cost of Account A assuming x number of checks is:

= 3 + 0.02x

For Account B this is:

= 2 + 0.03x

Equate both expressions:

3 + 0.02x = 2 + 0.03x

3 - 2 = 0.03x - 0.02x

0.01x = 1

x = 1 / 0.01

x = 100 checks

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