Question

Kerry has a new cell phone plan. It works by charging $20 per month and then $0.10 for each
minute over 200 minutes.
a. Write an equation for the amount of extra minutes, x, billed if Kerry’s cell phone bill was
$40.

Answer 1

If we let x represents the extra minutes per month.
ok?

Answer 2

then the amount paid is y.

Answer 3

Do you follow?

Answer 4

x+40=y?

Answer 5

not quite

Answer 6

y=20+0.01(x)

Answer 7

Does it make sense?

Answer 8

a bit.

Answer 9

So where can we put 200 min in the relation?

Answer 10

It looks like that.