SOLUTION: Martha wants to buy a digital camera from her 3 month savings. To do this she needs to maintain an average saving of 300.00 in each month. She saves 450.00 in the first month and 2

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Martha wants to buy a digital camera from her 3 month savings. To do this she needs to maintain an average saving of 300.00 in each month. She saves 450.00 in the first month and 2      Log On


   

Question 147210: Martha wants to buy a digital camera from her 3 month savings. To do this she needs to maintain an average saving of 300.00 in each month. She saves 450.00 in the first month and 200.00 in the second month. Find the amount she should save in the third month to buy a digital camera at the end of three months.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
%28450+%2B+200+%2B+x%29+%2F+3+=+300
450+%2B+200+%2B+x+=+900
x+=+250
She must save $250 in the 3rd month