Answer:
See below
Step-by-step explanation:
-8 and -4 have a GCF of -4, thus:
-8u^2-4u^2
-4(2u^2+u^2)
Factor out u^2:
-4u^2(2+1)
-4u^2(3)
-12u^2
Realistically, it's easier to do (-8-4)u^2
First off, you have to find a common denominator between 6 and 9 which is 18, so to rewrite your equation using the common denominators it would be 15/18+(-8/18)-(-36/18) when you combine these it equals (7/18)-(-36/18)=43/18
35.3 feet. You can find this by dividing 635.4 by 18 because area is length times width. <span />
Answer:
187.5 doughnuts (about 188)
62.5 candy bars (about 63)
Step-by-step explanation:
So the proportion of middle schoolers who prefer doughnuts is p = 9/12. That means the proportion of middle schoolers who prefer candy is 1 - 9/12 = 3/12.
The number of middle schoolers is n = 250.
Let X represent the number of doughnuts you need. The expected number is E(X) = np, so multiply them together:
E(X) = np
E(X) = 250 * 9/12 = 187.5 doughnuts
Let Y represent the number of candy bars you need. The expected number is E(Y) = np, so multiply them together:
E(Y) = np
E(Y) = 250 * 3/12 = 62.5 candy bars
