Answer: A
Step-by-step explanation:
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Answer:
There is a total of 2 1/4 lb of clay. Divide that amongst the class.
Perimeter=sum of side lengths...
P=2L+2W
P=2(L+W), in this case L and W are 30 and 40 so
P=2(30+40)
P=2(70)
P=140
So 140 feet of fencing is needed to replace the fence.
The amount of sod needed is equal to the area which is LW
A=30(40)=1200 ft^2
Call x the smallest of the three numbers, then:
x + (x+1) +(x+2) = -27
x + x + 1 + x + 2 = -27
3x+3 =-27
3x = -27 -3
3x = -30
x = -30/3 = -10
The three numbers are: -10, -9 and -8.