SOLUTION: Huda opened a bank account with $30.00 and deposited $25.00 every month. After several months, she had a total of $180 in her account. For how many months did Huda save? I kno

Question 912626: Huda opened a bank account with $30.00 and deposited $25.00 every month. After several months, she had a total of $180 in her account. For how many months did Huda save?

I know it's summation notation but the answer I am coming up with is not right and seems off. I thought it should be sigma and above it x and below it n=1 and then next to it 30(25)^n-1 so then the equation would be 30(1-25^x/1-25)=180 but I keep getting 1.546 and I know that is not right because it is not one of the options. Please help? thanks!
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Let x = number of months Huda saved

She starts with $30 and adds $25 each month. I'm assuming she deposits $25 each time. So for x months, she'll add on 25x dollars.

Total Saved Over x Months: 30 + 25x

This is set equal to 180 because "After several months, she had a total of $180 in her account"

---------------------------------------------------------------

30 + 25x = 180

25x = 180 - 30

25x = 150

x = 150/25

x = 6

She has saved for 6 months

Let me know if you need more help or if you need me to explain a step in more detail.
Feel free to email me at jim_thompson5910@hotmail.com
or you can visit my website here: http://www.freewebs.com/jimthompson5910/home.html

Thanks,

Jim
RELATED QUESTIONS
Jill has $1275.00 in her savings account. When she opened her account, she had $300.Every (answered by ikleyn)

Franklin deposited $75 in a no-interest bank account when he opened it. After that, he... (answered by Theo)

albert had $120 in his saving account. he deposited some money at the end of january and... (answered by MathLover1)

After three months, $8200 deposited in a savings account with simple interest had grown... (answered by Boreal)

John opened a bank account. He deposited $800 in his account. The account pays simple... (answered by indra89811)

Christiana and Marlena opened their first savings accounts on the same day. Christiana... (answered by ankor@dixie-net.com)

Debra and Boris each opened a savings account today. Debra opened her account with a... (answered by ikleyn)

When JM Clel was 10 years old, he started saving his money using a coin bank. When he... (answered by josgarithmetic,amoresroy)

Mark and Brian are starting a new business. They borrowed $7,500 from their bank in... (answered by Boreal)