Answer:
x = 9.25
Step-by-step explanation:
(4x - 1) = 36
4x - 1 = 36
4x = 36 +1
4x = 37
x = 37/4
x = 9.25
Ok so first we have to find out how much a bag of flour weighs. Since 4 bags of flour equals 32 pounds, we can divide 32 by 4 to find the weight of one bag of flour. 32/4=8, so one bag of flour weighs 8 pounds. Now, since 3 bags of flour and two bags of sugar weighs 32 pounds, we can subtract the weight of the flour from the total. Since there are 3 bags of flour, they weigh 24 pounds. 32-24=8, so 2 bags of sugar weighs 8 pounds. Therefor, we can divide 8 by 2 to get 4 pounds, so one bag of sugar weighs 4 pounds. So, the ratio of the weight of a bag of flour to a bag of sugar is 8:4, which can be simplified to 4:2, and finally simplified to 2:1, which is the answer.
Hope this helps!
-Raiden
Answer:
D. y =
Step-by-step explanation:
The solutions to this graph (meaning when y equals 0 or when the graph crosses the x-axis) are 4 and 5.
The only answer choice that has the solutions 4 and 5 when you factor it out is D.
Here's the proof:
![x^{2} -9x + 20](https://tex.z-dn.net/?f=x%5E%7B2%7D%20-9x%20%20%2B%2020)
Factors of 20: - 5 & -4
Sums that add up to -9: -5 + (-4)
![x^{2} -4x-5x+20](https://tex.z-dn.net/?f=x%5E%7B2%7D%20-4x-5x%2B20)
(factor the first two terms and the last two terms separately)
![(x^{2}-4x)(-5x+20)](https://tex.z-dn.net/?f=%28x%5E%7B2%7D-4x%29%28-5x%2B20%29)
![x(x-4) -5(x-4)](https://tex.z-dn.net/?f=x%28x-4%29%20-5%28x-4%29)
(x - 5) (x - 4)
Hope it helps (●'◡'●)
19. 5.50-1.25=4.25
21. y = -9