SOLUTION: Create a two-step equation for this situation, then solve: Sarah is saving to buy a kayak that costs $440. She has saved $160 so far. She plans on saving $40 each month. In how m

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Create a two-step equation for this situation, then solve: Sarah is saving to buy a kayak that costs $440. She has saved $160 so far. She plans on saving $40 each month. In how m      Log On


   

Question 1180756: Create a two-step equation for this situation, then solve: Sarah is saving to buy a kayak that costs $440.
She has saved $160 so far. She plans on saving $40 each month. In how many months (m) will Sarah have
enough money to buy the kayak?
Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
the kayak costs 440.
she has saved 160 so far.
she plans on saving 40 each month.

equation is 440 = 160 + 40 * x

x represents the number of months.
to solve for x, do the following:
start with 440 = 160 + 40 * x
subtract 160 from both sides of the equation to get:
280 = 40 * x
solve for x to get:
x = 280 / 40 = 7
she will have enough money to pay for the kayak in 7 months.