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katovenus [111]
3 years ago
7

Please help me thanks

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
8 0
6x + 45 + 3x = 180
9x - 45 = 180
9x = 135
x = 15
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the perimeter of a rectangular field is (16a+8b-6c) units and one of its side is (5a+3b-4c) find the other side
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3a+b+c


The perimeter is two times one side (to account for the opposite) and two times the adjacent side. So if the sides would be x and y, the perimeter would be 2*x + 2*y.

So, knowing that the sum is 16a+8b-6c, if we subtract the given side 5a+3b-4c from this, what remains is two times the "other" side:

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The mean life of a certain brand of auto batteries is 44 months with a standard deviation of 3 months. Assume that the lives of
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