Please help!! ^-^'

[6.05] Trevor's dad decided to get him a cell phone for his birthday. Cell Plus has a plan that costs $25.00 per month plus an additional $0.06 per minute. Cell Best has a plan that costs $30.00 per month plus an additional $0.05 per minute. How many minutes can Trevor talk and both cell plans cost the same amount?

Question

Please help!! ^-^'

[6.05] Trevor's dad decided to get him a cell phone for his birthday. Cell Plus has a plan that costs $25.00 per month plus an additional $0.06 per minute. Cell Best has a plan that costs $30.00 per month plus an additional $0.05 per minute. How many minutes can Trevor talk and both cell plans cost the same amount?

anonymous · Answer

I'm suppose to use systems of equations.

tkhunny · Answer

A system?  That's a little odd, since it just goes away immediately.  Any way...

Express each bill as a linear function in terms of the minutes used.

Plus(m) = FlatFee + m*(Minutes)

You do the other one.

anonymous · Answer

Ah... I'm kinda confused on creating the equations...

tkhunny · Answer

It's time to get unconfused.  Use my model and create an equation for the second plan.  In my case m = $0.06 / min

anonymous · Answer

.05= 25 + .05 * m?

tkhunny · Answer

"Cell Plus has a plan that costs $25.00 per month plus an additional $0.06 per minute"

Cell Plus Bill = $25.00 + $0.06 * (Minutes Used)

"Cell Best has a plan that costs $30.00 per month plus an additional $0.05 per minute"

Give it another go.

anonymous · Answer

30.00 + .05m = 25.00 + .06 * m?

tkhunny · Answer

Okay, I'll bite.  See you your "system" just disappeared?  Now we have just the one equation to solve.

anonymous · Answer

oh... yeah I need major help with word problems >.< sorry. I think I need step by step.