SOLUTION: Use the five steps for problem solving to answer the following question. Please show all of your work. Laura found $2.15 in quarters and nickels in the bottom of her purse. Ther

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: Use the five steps for problem solving to answer the following question. Please show all of your work. Laura found $2.15 in quarters and nickels in the bottom of her purse. Ther      Log On


   

Question 445931: Use the five steps for problem solving to answer the following question. Please show all of your work.
Laura found $2.15 in quarters and nickels in the bottom of her purse. There were seven fewer quarters than nickels. How many nickels and quarters did she find?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

Laura found $2.15 in quarters and nickels in the bottom of her purse

How many nickels and quarters did she find?

There were seven fewer quarters than nickels

Let x, (x-7)represent the number of nickels and quarters respectively

.Question states*** CENTS makes sense

 5x + 25(x-7) = 215 cents

Solving for x

  30x = 390

    x = 13, the number of nickels.  there were 6 Quarters (13-7)



CHECKING our Answer***

 5*13 + 25*6 = 65 + 150 =  215cents = $2.15