1. A phone company offers two monthly plans. Plan A costs $27 plus an additional $0.07 for each minute of calls. Plan B costs $10 plus an additional $0.11 for each minute of calls.

Question

unofficialllyy · Answer

For what amount of calling do the two plans cost the same?

What is the cost when the two plans cost the same?

anonymous · Answer

Ok. So for this one set up the two separate equations again.

unofficialllyy · Answer

Plan A: 27+0.07m
Plan B: 10+0.11m

anonymous · Answer

Good so in order to find when they cost the same you need to find out how much time it requires for them to cost the same. To do this the equations need to be equal to each other. For example: it will look like this, 27+0.07m=10+0.11m. Now solve for m to find how many minutes are needed for them to cost the same.

unofficialllyy · Answer

I got 425,

unofficialllyy · Answer

I got the next part, you plug 425 in for m and solve

unofficialllyy · Answer

and i got 56.75

anonymous · Answer

Yes that is exactly right!

unofficialllyy · Answer

yay!! thanks

anonymous · Answer

no problem!