SOLUTION: Peter has six times as many dimes as quarters in her piggy bank. She has 21 coins in her piggy bank totaling $2.55

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Question 1106102: Peter has six times as many dimes as quarters in her piggy bank. She has 21 coins in her piggy bank totaling $2.55
Found 3 solutions by Alan3354, josgarithmetic, ikleyn:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
He must be pleased.

Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
d dimes
q quarters

system%28d=6q%2Cd%2Bq=21%2C10d%2B25q=255%29
You should need only two equations and not all three of them. Decide which two you want.

10d%2B25q=255
2d%2B5q=51


system%28d%2Bq=21%2C2d%2B5q=51%29
system%282d%2B2q=42%2C2d%2B5q=51%29
3q=51-42
3q=9
highlight%28q=3%29-----------quarters
-
d%2Bq=21
d%2B3=21
highlight%28d=18%29-----------dimes

Also notice, "...six times as many dimes as quarters..."
d=6q
18=6%2A3
this fits.

Answer by ikleyn(52855) About Me  (Show Source):
You can put this solution on YOUR website!
.
Peter has six times as many dimes as quarters in her piggy bank. She has 21 coins in her piggy bank totaling $2.55
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Is  Peter  "he"  or  "she" ?

Also,  why did not you formulate your question in your post ?


Posts without questions are  INCOMPLETE  and are the subject  OF  IGNORING,


according to the rules of this forum.