Question

17. Isabella is saving $175 every 2 weeks for her

band trip. What equation can be used to
model the total amount of money y she saves
in x number of weeks? How much money will
she have if she saves for 9 weeks? (Example 3)

Answer 1

Equation:
`y = (175)/(2) * x`

Money saved: $787.50

Explanation:

In order to solve this we want to find a simple equation to represent how much money she is saving. We can do this by first figuring out how much she saves every week.

We know that she saves $175 every TWO weeks, meaning we can find a weekly value by dividing 175 by 2. Since we now know the weekly value, we can write the equation as:

`y = (175)/(2) * x`

In order to find how much money she made in 9 weeks, we simply plug 9 in for x:

`y = (175)/(2) * (9) = 787.50`

Hope this helps. If you need any more explanation let me know.