The area of the place mat, 126 in^2, is equal to L * W, where L = 4(W/2 - 9).
We must solve this equation for the width, W.
Then 126 in^2 = W * 4(w/2 - 9). Simplifying, 126 in^2 = W(2W - 36), and
63 in^2 = W(W - 18). Then W^2 - 18W - 63 = 0. This is a quadratic equation with coefficients a = 1, b = -18 and c = -63; the discriminant is 576.
Thus, the solutions are:
-(-18) plus or minus √576
W = -----------------------------------------
2
18 plus or minus 24
= --------------------------------- = {21, -3}. Omit the negative result, since
2 W = width must be a positive quantity.
Thus, W = 21 inches.
147 is the answer if that helped plz leave a like so I can help u more
0.63 does not simplify at all, so it stays 63/100. :)
Answer:
"conditional on all else being equal, as the price of a good increases (↑), quantity demanded will decrease (↓); conversely, as the price of a good decreases (↓), quantity demanded will increase (↑)"
Step-by-step explanation:
Once you mutiplied everything since the formula for volume is v=lwh you will get 2 as your answer!
(5/3)(3/2)(4/5)= 2
Numerators=60
Denominators=30
60/30=2