[6.05] Trevor's dad decided to get him a cell phone for his birthday. Cell Plus has a plan that costs $20.00 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

kainui · Answer

First off, lets make this a function where price (p) is dependent on minutes (t)

So for the first cellphone plan it's going to be 20.00 a month no matter what, so it doesn't depend on minutes talked, right? Now it's .06 for every minute, and since it is dependent on time, we can multiply them. Since .06t just means it'll be .06*1 for one minute, and .06*2 for two minutes, that makes sense so far.

Now the price for that month is the 20.00 and the extra charge added for talking, so our function looks like:

P=.06t+20

Now can you do the next one?

anonymous · Answer

one thing math is not my field so i cant do the next one im sorry

kainui · Answer

I can help you learn math, but I won't do your homework for you. You can always learn math.

anonymous · Answer

okay ill give it a shot. after P=.06t+20 do i need to combine them together?

anonymous · Answer

i need help on this problem too