SOLUTION: Lordy help me please,
Media Services charge $20 for a phone and $30/month for its economy plan The equation c=30t+20 describes the total cost, c of operating a phone for t months
Algebra ->
Linear-equations
-> SOLUTION: Lordy help me please,
Media Services charge $20 for a phone and $30/month for its economy plan The equation c=30t+20 describes the total cost, c of operating a phone for t months
Log On
Question 249630: Lordy help me please,
Media Services charge $20 for a phone and $30/month for its economy plan The equation c=30t+20 describes the total cost, c of operating a phone for t months
The total cost for 2 months is?, I got this part it is $100 but the part I cant get is If a customer has only $90 available how many months of service can they receive A 2 1/3 B 2 C 2 1/2 or D 3
Can someone help with this part? thanks Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! 100 is wrong
$20 is just charged the first month
You didn't use the formula or you don't understand it
t=months
just plug 2 in the formula for t and solve for c
for the second part plug 90 in for c and solve for t
