Answer:
20% alcohol = 1 gal
10% alcohol = 9 gal
Step-by-step explanation:
Let
x = 20% alcohol
y = 10% alcohol
x + y = 10 (1)
0.20x + 0.10y = 10*0.11
0.20x + 0.10y = 1.1 (2)
From (1)
x = 10 - y
Substitute x = 10 - y into (2)
0.20x + 0.10y = 1.1
0.20(10 - y) + 0.10y = 1.1
2 - 0.20y + 0.10y = 1.1
- 0.20y + 0.10y = 1.1 - 2
-0.10y = -0.9
y = -0.9/-0.10
y = 9 gal
substitute y = 9 into (1)
x + y = 10
x + 9 = 10
x = 10 - 9
x = 1 gal
20% alcohol = 1 gal
10% alcohol = 9 gal
The answer would be the first option :
4/3r (3x)^3.
Hope this helps !
Photon
Answer:
-1/3
Step-by-step explanation:
When x is 1, y is 5
When x is 4, y is 4
5-4=1
1-4=-3
1/-3=-1/3
Answer:
6
Step-by-step explanation:
To make this easier i like to turn my length into a fraction with the same denominator
36/1= 18/2
18/2 divided by 3/2 equals 6
6 total pieces
Hope this was helpful
Please mark brainliest!
;p
3 / 15 = 1 / 5
5 / 20 = 1 / 4
so no, they are not. we know this because when you turn them into proportions and simplify them, the two rates are not equal
