Problema Solution
Peg's phone costs $25 and she pays 0.25 a minute per call. Larry's phone costs $35 and he pays 0.20 a minute per call. After how many minutes will Peg's phone cost more than Larry's?
Answer provided by our tutors
Peg's phone costs $25 and she pays 0.25 a minute per call. Larry's phone costs $35 and he pays 0.20 a minute per call. After how many minutes will Peg's phone cost more than Larry's?
Let "x" be the number of minutes.
25+0.25x>35+0.2x.
0.25x-0.2x>35-25.
0.05x>10.
x>10/.05.
=200.