SOLUTION: every evening jenna empties her pockets and puts her change in a jar. at the end of the week she counts her money. one week she had 40 coins, all of them dimes and quaters. when sh

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: every evening jenna empties her pockets and puts her change in a jar. at the end of the week she counts her money. one week she had 40 coins, all of them dimes and quaters. when sh      Log On


   

Question 656768: every evening jenna empties her pockets and puts her change in a jar. at the end of the week she counts her money. one week she had 40 coins, all of them dimes and quaters. when she added them up she had a total of $ 7.75.
How many quaters did jenna have ?
Answer by solver91311(24713) About Me  (Show Source):
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If she had quarters, then she must have had dimes. Quarters are worth 25 cents each, so the total value of her quarters must have been cents. Likewise the total value of her dimes must have been cents. The total amount she had, namely 775 cents, is equal to the sum of the value of her quarters and the value of her dimes:



John

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