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October 24, 2014

October 24, 2014

Posted by **sam** on Thursday, October 28, 2010 at 4:45pm.

chris has $3.20 in dimes and quarters. he has 17 all together. how many of each does he have?

- algebra -
**Ms. Sue**, Thursday, October 28, 2010 at 4:47pmIt's not necessary to change names on this forum. It's obvious that these four questions were posted by one person.

- algebra -
**sam**, Thursday, October 28, 2010 at 4:50pmyeah i know i didnt think you would answer all of thes questions. can you help me w/ at least 2 please. i need to know the steps then i can do the other problems

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**Reiny**, Thursday, October 28, 2010 at 4:55pmYour last four money questions are the same type

If will do one, then you try the others.

let the number of nickels be x

then the number of quarters is 16-x

5x + 25(16-x) = 220

5x + 400 - 25x = 220

-20x = -180

x = 9

so 9 nickels and 7 quarters

check: 9 nickels and 7 quarters = 16 coins

value: 9x5 = 7x25 = 220

- algebra -
**sam**, Thursday, October 28, 2010 at 5:37pmwhere is the 25 and 5x from?

- algebra -
**Ms. Sue**, Thursday, October 28, 2010 at 5:43pm25 = 25 cents = 1 quarter

5 = 5 cents = 1 nickel

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