1 + .04m = .65 + .06m
Subtract .04m and .65 from both sides of the equation
.35 = .02m
Solve for m by dividing .35 by .02.
To use card A, the cost is $1.00 to connect and then $0.04 per minute. To use card B, it costs $0.65 to connect and then $0.06 per minute. For what number of minutes does it cost the same amount to use each card for a single call?
2 answers
17.5