Suppose x quarts of the 50% solution
0.5x+0.2*20=0.4(x+20)
0.5x+4=0.4x+8
0.1x=4
x=40
Answer:
C) (square root 2)/2
Step-by-step explanation:
In quadrant III, the sine of an angle is positive. The value will be ...
sin(Θ) = √(1 -cos(x)^2) = √(1 -(-√2/2)^2) = √(2/4)
sin(Θ) = (√2)/2
Given:
Consider the given gallons are 
gallons.
To find:
The number of quarts in gallons.
Solution:
We know that,
1 gallons = 4 quarts
Using this conversion, we get
Therefore, there are 33 quarts in gallons.
Answer:
T^75
Step-by-step explanation:
3 times 5 = 15
5 times 15 = 75
Answer:
10
Step-by-step explanation:
We want to find k when y=kx
2y = 20x
Divide each side by 2
2y/2 =20x/2
y = 10x
The constant of proportionality is 10
