quarters ---- x
nickels ----- 20-x
solve for x:
25x + 5(20-x) = 220
sarah has 16 coins, some quarters and some nickels. if te coins have a value of $2.20, how many of each kind does she have.
2 answers
typo:
don't know where my 20 came from.
should have been:
quarters ---- x
nickels ----- 16-x
solve for x:
25x + 5(16-x) = 220
don't know where my 20 came from.
should have been:
quarters ---- x
nickels ----- 16-x
solve for x:
25x + 5(16-x) = 220