SOLUTION: Teresa is saving money to buy a bike. She has $42 and is going to save an additional $7 each week. The bike costs $133 . In how many weeks will she have enough money to

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Teresa is saving money to buy a bike. She has $42 and is going to save an additional $7 each week. The bike costs $133 . In how many weeks will she have enough money to       Log On


   



Question 1028612: Teresa is saving money to buy a bike. She has
$42
and is going to save an additional
$7
each week. The bike costs
$133
. In how many weeks will she have enough money to buy the bike?
'



Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Call w the number of weeks it will take her...thus she saves 7 dollars each week...so we write
42 + 7w = 133
Subtract 42 and get
7w = 91
Divide by 7 and get
w = 13 weeks