2 part word problem

lashay06

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Oct 3, 2009
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The problem is: A rectangular shaped field, 567 feet by 963 feet, is to be fertilized before planting a new crop. If the fertilizer costs $31 a bag and can cover 1525 square feet, how many bags will be needed and what will they cost?

My question is do I find the area or the perimeter first, and then solve?

the perimeter: P=2l+2w
2(567)+2(963)
1134+1926
3060

then I setup the problem to find the cost as:
31x + 1525 = 3060
31x=1535
x=49.5

problem to find how many bags as:
31+1525x=3060
1525x=3029
x=1.9
 
lashay06 said:
My question is do I find the area or the perimeter first, and then solve?
THE AREA!

area / 1525 = bags
bags * 31 = cost
 
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