# algebra

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nicole has \$2.20 in nickels and quarters. she has 16 coins all together. how many of each does she have?

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

• algebra -

It's not necessary to change names on this forum. It's obvious that these four questions were posted by one person.

• algebra -

yeah i know i didn't 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

• algebra -

Your 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 -

where is the 25 and 5x from?

• algebra -

25 = 25 cents = 1 quarter
5 = 5 cents = 1 nickel

• algebra -

PAM AND PAT HAVE \$20 ALTOGETHER PAM HAS \$4 MORE THAN PAT HOW MUCH MONEY DOES PAM HAS\$