Hi there!
quarter:18
<u><em>1.Find common denominator in 4 and 1/2:</em></u>
<u><em /></u>
<u><em /></u>
<u><em /></u>
<u><em /></u>
<u><em>2.Convert 4 2/4 into mixed number:</em></u>
<u><em /></u>
<u><em /></u>
<u><em>3.Divide 18/4 by 1/4:</em></u>
<u><em /></u>
<u><em /></u>
Therefore, there is 18 quarters in 4 1/2.
In system A, the first equation multiply by 4
8x - 4y = 12 (1st)
3x + 4y = 10 (2nd)
--------------------add
11x = 22
So answer is B.
<span>Perimeter =2w+2L= 520.
We can solve this by understanding that the area is maximized by a square
Therefore L=w.
p=2w+2w=520=4w
w=130
Area
A=wL=130(130)= 16900 square yards</span>