The answer is: " 3 inches " .
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<u>Note</u>:
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" 6 inches" / (2) = "3 inches" .
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M N
| 3 " |
<------------A------|------B------------C------------D------------>
| 6 in | 6 in | 6 in |
|
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X/(x+5) = (x-2)/(x+1)
x(x+1) = (x -2) (x + 5)
x^2 + x = x^2 - 2x + 5x - 10
x = 3x - 10
3x - x = 10
2x = 10
x = 5
answer is A
5
4(100)=400
400/1=400
You will need 400 stakes