Question

A cell phone company offers two different monthly text-messaging plans as shown in the table below. For what number of text messages will both plans cost the same?
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

Messaging Plan Monthly Fee Fee per Message
Plan A $35.00 $0.10
Plan B $18.00 $0.30

Answer 2

Help!

Answer 3

Can you make equations for the total cost of each plan?

Answer 4

Ok, for Plan A the total cost can be represented by\[C_{a}=$35+$0.10 \times T\]where T is the number of texts.

Can you make an equation for Plan B?

Answer 5

u let me see

Answer 6

what does Ca stand for does a stand for plan A

Answer 7

The cost of Plan A, yes.

Answer 8

ok

Answer 9

Cb=$18+ $0.30*T

Answer 10

Yes!

So there's going to be a value of T that makes Ca=Cb.

So just solve\[18+0.30 \times T=35+0.10 \times T\]and you're done!

Answer 11

ALRIGHT SO I GOT T=85

Answer 12

Yes!

Answer 13

thank you you always break them down and make the ones that were hard super easy

Answer 14

You're very welcome. :)