Mathematics, 17.03.2020 20:01 xxtonixwilsonxx
7) In the barn there are 17 animals. Some are cows and some are ducks. There are 54 legs in all. Which system of equations below could be used to find how many cows and how may ducks are in the barn?
A) c+d=17
4c+2d=54
B) c+d=17
4c+2d=54
C) c+d=17
4c+2d=17
D) c+d=17
4c+2d=6cd
Answers: 3
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7) In the barn there are 17 animals. Some are cows and some are ducks. There are 54 legs in all. Whi...
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