Sunday

November 23, 2014

November 23, 2014

Posted by **Ashley** on Thursday, August 7, 2014 at 12:46pm.

- math -
**Steve**, Thursday, August 7, 2014 at 12:49pmSounds like a good plan.

Was there a question in there somewhere?

- math -
**Ashley**, Thursday, August 7, 2014 at 12:59pmI was trying to find the expression for the problem

- math -
**Ashley**, Thursday, August 7, 2014 at 1:08pmI have to find the equation of the line, but I need the expression to solve it.

- math -
**Steve**, Thursday, August 7, 2014 at 1:22pmlooking at the data, it appears she saved #25 each week. So, after x weeks, her saving y would be

y = 25x

You can work into that by noting that if

y = mx+b

when x=7,

175 = 7m+b

when x=15,

375 = 15m+b

so, 8m = 200

m = 25

Now you have

y = 25x+b

plugging either point shows that b=0, so

y = 25x

- math -
**Ashley**, Thursday, August 7, 2014 at 1:38pmHow much was in her account four weeks after she began saving?

- math -
**Ashley**, Thursday, August 7, 2014 at 2:11pmOops wrong question

I meant to ask

When she started saving money, 203 shopping days were left until Christmas. How much money was in her account at Christmas?

- math -
**Steve**, Thursday, August 7, 2014 at 2:40pmwell, you have the equation. How many weeks from the time she started saving, until Christmas? $25/week, babe.

I assume you know how many days per week . . .

- math -
**Ashley**, Thursday, August 7, 2014 at 2:43pmThank you I got it....so helpful

**Answer this Question**

**Related Questions**

compound interest - At the beginning of every year, Molly deposits $200 in a ...

Math - Shannon opens a savings account with $50. Each week after that she ...

Math - Can you help me with this problem? At the beginning of January, Lisa had ...

algebra 2 - You have $22 in your bank account, and you deposit $11.50 per week...

algebra - If x dollars is deposited every four weeks (13 times a year) into an ...

math - the function y=20x shows the amount of money in Marcy's bank account ...

math - A friend opens a savings account by depositing $1000. He deposits an ...

math - A friend opens a savings account by depositing $1000. He deposits an ...

Math - A friend opens a savings account by depositing $1000. He deposits an ...

Math - Jennifer started with $50 in her savings account. Each week she withdrew...