PLEASE HELP ME HELPPP

Question

A phone company offers two monthly plans. Plan A costs
$27
plus an additional
$0.11
for each minute of calls. Plan B costs
$13
plus an additional
$0.15
for each minute of calls.

 

Its asking me For what amount of calling are both plans the same and what is the cost when both plans cost the same?

Answer 1

You set the following equation and solve it for m. The value of m you get is the value at which plan B will cost as much as plan A. (The converse is that below that m plan B costs less).

 

27+.11min=13+.15min

27+13=(.11+.15)min

 

40=.16Min

4000=16min=250. You are better of with plan A because plan be will end up costing you a whole lot more when you use up any more than 250 minutes. You didn't exactly it but that's what i think you are looking for.