Bag Moss
Bag Moss
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homework help for my good fridend lida BEST ANSWER 10 POINTS =)?
One garden has a diameter of 12 feet, one has a radius of 8 feet, and the third has a diameter of 20 feet. If each bag of peat moss can cover 160 square feet of ground, how many bags of peat moss will the gardener need?
It sounds like the gardens are circular, so you have to figure out their area using the equation A=3.14*r^2 where A is the area and r is the radius. 3.14 is an approximation for the constant pi. For the two gardens that you know the diameter of, divide the diameter by 2 to get the radius. Figure out the area of each of the three gardens, then add those three areas together to get the total area the gardener needs to cover with peat moss.
Now to figure out how many bags the gardener needs. One bag covers 160 square feet of area, so divide your total area (all 3 gardens added together) by 160 square feet. It will most likely come out to a decimal, like 3.4 maybe (that's not the answer, I just made up a number). Since the gardener can only buy whole bags of peat moss, you need to round up. So if the number you got by dividing the area by 160 was 3.4, the gardener would actually need to buy 4 bags. Hope that helps!
