2. A phone company charges a base fee of $12 per month plus an additional charge per minute. The monthly phone cost C can be represented by this equation: C = 12 +a. m, where a is the additional
charge per minute, and m is the number of minutes used.
Which equation can be used to find the # of minutes a customer used if we know and a and C?
A. m = (C-12)
B. m = (C - 12)-a
C. m = C - 12a
(C-12)
D. m =
a
E. m = 8-12

Given:

The  monthly phone cost C can be represented by this equation:

where, a is the additional  charge per minute, and m is the number of minutes used.

To find:

The equation can be used to find the number of minutes a customer used if we know and a and C.

Solution:

We have,

We need to isolate m on one side.

Subtract 12 from both sides.

Divide both sides by a.

The options are not in proper format.

Therefore, the required equation is .

answer: f = 32.2m

step-by-step explanation: that is the answer

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

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