Using the Area Formula
by jason zimmerman
(omaha nebraska usa)
Determine the total amount of fertilizer in ounces (oz) needed to fertilize a rectangular lot with dimensions 24 yd by 21 yd if 3 oz of fertilizer is needed per square yard.How would I figure this out?
Karin from Algebra Class Says:
In order to solve this problem, you must first use the area formula to figure out how many square yards you have.
Area = Length x width
A = 24 x 21
A = 714 sq yds
If you have 714 sq yards and it takes 3 oz of fertilizer per square yard, then you must multiply 3 x 714.
3oz x 714 sq yds = 2142 oz of fertilizer.
You would need 2142 oz of fertilizer.
I hope this helps,