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OpenStudy (anonymous):
Which system describes the following situation? Craig has $0.80 in nickels (n) and dimes (d). He has four more nickels than dimes. d+n=4 10d+5n=80 n-d=4 10d+5n=80 d-n=4 10d+5n=80 d+n=4 10d-5n=80
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OpenStudy (anonymous):
Do you have a guess?
OpenStudy (anonymous):
the 1st
OpenStudy (anonymous):
??
OpenStudy (anonymous):
not quite
OpenStudy (anonymous):
we can eliminate the first one because his dimes and nickles will not sum to 4. That information was not given.
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OpenStudy (anonymous):
ok
OpenStudy (anonymous):
o the second
OpenStudy (anonymous):
correct! well done
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