There are 19 animal in the barn. some are geese and some are oxen. There are 70 leg in all. How many of each animal are there

Question

Mathematics

Blaze Torres

21 January, 18:58

There are 19 animal in the barn. some are geese and some are oxen. There are 70 leg in all. How many of each animal are there

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Answers (1)

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Rudy · Answer 1

There are 3 geese and 16 oxen.

x is the number of geese and y is the number oxen.

x+y=19

2x+4y=70

Solve by substitution:

y = - x+19

2x+4 (-x+19) = 70

2x-4x=-6

x=3

3+y=19

y=16