Jennifer is saving money to buy a bike. The bike costs $245. She has $125 saved, and each week she adds $15 to her savings. How long will it take her to save enough to buy the bike?
-please use algebra not multiplying.
X= how many weeks it will take since it is the unknown. 125+15*X=225. Subtract 125 from 225. You get 15*x=120. Divide 120 by 15. You get x=8. So 8 weeks is your answer.
