Brandy wants to buy a digital camera that costs $300. Suppose she saves $15 dollars each week. In how many weeks will she have enough money for the camera?

20 weeks should give him just enough.

By either writing and solving a simple equation (15w=300) or dividing by 15, you can figure out how many amounts of 15 would need to be saved to get 300.

You have to divide 300 with 15, the answer to that is: 300/15=20. However, if she starts saving this week (counting as a first), she will have enough money in 19 weeks after the first week, she needs 20 weeks to save the money.