Asked by jaclyn
if i have 16 coins they total $1.oo thaey are all dimes & nickels how many of each do i have
Answers
Answered by
Reiny
nickels --- n
dimes ---- d
n+d = 12
5n + 10d = 100 or
n + 2d = 20
subtract the two equation, easy from there
dimes ---- d
n+d = 12
5n + 10d = 100 or
n + 2d = 20
subtract the two equation, easy from there
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