SOLUTION: Please help me with this problem. I am helping my 9 year old cousin with her homework and I don't understand this problem. Sally and Joshua have the same amount of money. Joshu

Algebra ->  Decimal-numbers -> SOLUTION: Please help me with this problem. I am helping my 9 year old cousin with her homework and I don't understand this problem. Sally and Joshua have the same amount of money. Joshu      Log On


   

Question 973272: Please help me with this problem. I am helping my 9 year old cousin with her homework and I don't understand this problem.
Sally and Joshua have the same amount of money. Joshua pays $9.10 for a bag and has $16.25 left. Sally buys a pen and has $19.60 left. How much does the pen cost?

Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!
Joshua pays $9.10 for a bag and has $16.25 left. 
%28matrix%287%2C1%2C%0D%0A%0D%0AThe%2Camount%2Cof%2Cmoney%2CJoshua%2Cstarts%2Cwith%29%29%22%22=%22%22%22%22%2B%22%22%28matrix%287%2C1%2C%0D%0A%0D%0AThe%2Camount%2Cof%2Cmoney%2Che%2Chas%2Cleft%29%29%22%22=%22%22%22%249.10%22%2B%22%2416.25%22%22%22=%22%22%22%2425.35%22

Sally and Joshua have the same amount of money.
Therefore Sally also starts with $25.35.

Sally buys a pen and has $19.60 left. How much does the pen cost? 
%28matrix%287%2C1%2CThe%2Camount%2Cof%2Cmoney%2Cthe%2Cpen%2Ccosts%29%29%22%22=%22%22%28matrix%287%2C1%2C%0D%0A%0D%0AThe%2Camount%2Cof%2Cmoney%2CSally%2Cstarts%2Cwith%29%29%22%22-%22%22%28matrix%287%2C1%2C%0D%0A%0D%0AThe%2Camount%2Cof%2Cmoney%2Cshe%2Chas%2Cleft%29%29%22%22=%22%22%22%2425.35%22-%22%2419.60%22%22%22=%22%22%22%245.70%22

Edwin