SOLUTION: You have a jar of pennies and quarters. You want to choose 15 coins that are worth exactly $4.25. Write a system of equations that models the situation. When you get your final ans

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: You have a jar of pennies and quarters. You want to choose 15 coins that are worth exactly $4.25. Write a system of equations that models the situation. When you get your final ans      Log On


   

Question 1108505: You have a jar of pennies and quarters. You want to choose 15 coins that are worth exactly $4.25. Write a system of equations that models the situation. When you get your final answer, check to see if it makes sense. Explain why it does or doesn't make sense.
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
p and q
pennies and quarters

system%28p%2Bq=15%2Cp%2B25q=425%29

%28p%2B25q%29-%28p%2Bq%29=425-15
24q=410--------both q and p MUST be whole numbers...

q=410%2F24=17%261%2F12-----------this is NOT a whole number.

The solution and meaning of the problem description do not make sense.