AptAlbatross
02.09.2021 •
Mathematics
the perimeter of a triangle is 58 feet. the second side is 5 feet longer than two times the first side and the third side is 7 feet shorter than the first side. find the length of the three sides of the triangle.
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Ответ:
Part A:4m + 12 + 20m
2 (2m + 6 + 10m)
Part B: 2 (2m + 6 + 10m) = 4(m + 3 + 5m)
4m + 12 + 20m = 4m + 12 + 20m
24m + 12 = 24m + 12
Part C: if m equals 2,
4(m + 3 + 5m)
compile it down
4(2 + 3 + 5 x 2)
4(5 + 5 x 2)
4(10 x 2)
4(20)
4 times 20
80