Question 826676: a flower garden is shaped like a circle. Its radius is 20 yards. A ring shaped path goes around the garden. The width of the path is 5 yards. The gardener is going to cover the path with sand. If one bag of sand cover 7 yards, how many bags of sand does the gardener need ?
Found 2 solutions by richwmiller, MathTherapy:
Answer by richwmiller(17219)   (Show Source):
You can put this solution on YOUR website! the radius of the garden is 20 yds
the outer path has a radius of 25 yds
g =pi *20^2,
o =pi *25^2,
p=o-g,
b=p/7
b=100.98, g=1256.6, o=1963.5, p=706.86
101 bags
Answer by MathTherapy(10557)  (Show Source):
You can put this solution on YOUR website!
a flower garden is shaped like a circle. Its radius is 20 yards. A ring shaped path goes around the garden. The width of the path is 5 yards. The gardener is going to cover the path with sand. If one bag of sand cover 7 yards, how many bags of sand does the gardener need ?
If you meant that one bag of sand covers 7 SQUARE YARDS, then bags of sand needed is:  , or 224.3995 ≈ 
You can do the check!!
x + y = 13 ----- eq (i)
2x + 3y = 13 ----- eq (ii)
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