Forty yards of fabric are used to make 9 school banners. How many yards of fabric does each banner use? Write the answer as an improper fraction and mixed number.

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.

F(2) = 0f(-2) = 0due to the way the equation is, answers with 0 are correct.

$14.70 if you add all of them up and divide by 5.00 you will get 14.7 or 14.70