Ava is saving up to buy a new phone. She already has $100 and can save an additional $6 per week using money from her after school job. How much total money would Ava have after 9 weeks of saving? Also, write an expression that represents the amount of money Ava would have saved in w weeks.

Step-by-step explanation:

So, we know that Ava already has $100. This is our constant.

We also know that she saves $6 per week w. In other words, the total money she has after w weeks is:

This is our expression. 100 represents the $100 she already has and the 6w represents the amount of money she will have saved after w weeks.

To find out how much total money Ava would have after 9 weeks, substitute 9 for w. Thus:

Multiply:

Add:

So, after 9 weeks, Ava would have $154.

And we're done!

The expression 100 + 6w  and the amount she will save in 9 weeks is $154.

Step-by-step explanation:

The first statement can be represent by the expression 100 + 6w  where w is the number of week and 100 is the amount that she already had and 6 the amount she can save every week.

To find  how much money she will have after 9 weeks input 9 to into the expression and solve for the amount.

A = 100 + 6w     in this case A is the amount she will save after some period of weeks.  

A = 100 + 6(9)

A = 100 + 54

A = 154  

So in 9 weeks she will have $154