Carissa and Louann both have savings accounts. Carissa has $250 in her account and deposits $80 per month. Louann has $1230 in her account and withdraws $60 per month.

After how many months will they have equal amounts of money in their accounts? What amount of money will each have when it is the same amount?

It will take months. Then, they will both have $ in their accounts.

Question

Carissa and Louann both have savings accounts. Carissa has $250 in her account and deposits $80 per month. Louann has $1230 in her account and withdraws $60 per month.
 
After how many months will they have equal amounts of money in their accounts? What amount of money will each have when it is the same amount?
 
It will take   months. Then, they will both have $   in their accounts.

wmj259 · Answer

Equation for Carissa :
$=250+80x
Equation for Louann:
$=1230-60x

x represents the months

Insert into graphing calculator or www.desmos.com
Find where they intersect.
Which would be at x=7

If we substitute 7 into th equations above we get 
$=810

anonymous · Answer

thank you

wmj259 · Answer

Or instead of finding the intersection you could have set the equations equal to each other and solved for x.