We have 89 ounces of 47% iodine.
We will add "x" ounces of 14% iodine to get a 29% iodine solution.
89 * .47 + .14x = .29 * (89 + x)
41.83 + .14x = 25.81 + .29x
16.02 = .15x
x = 106.80
So, we must add 106.80 ounces of 14% iodine to get a 29% iodine solution.
(for a total of 195.80 ounces)
Source:
http://www.1728.org/mixture.htm
Answer:
-142
Step-by-step explanation:
First solve parenthesis,
(12) - (23 +131) =
(12) -154
Finally subtract,
12-154
= -142
To find slope:
(y1 - y2) / (x1 - x2)
(0-3)/(-4-0)
Slope is 3/4
So the equation is
y=3/4x + 3
The answer would be A) $79.20
(220*.4).9 as 60 percent off means that the product is only 40 percent of its original value, furthermore, we multiply the entire thing by .9
Answer:
Step-by-step explanation:
If the ratio of dogs to cats is 49:28, as an actual ratio (fraction), this is
We can reduce that to make the numbers smaller without changing the ratio. reducing gives us
We will use that ratio now to set up a proportion that involves a given number of cats and an unknown number of dogs. Keeping dogs on top and cats on bottom,
Cross multiply to get
4x = 140 so
x = 35
According to the ratio of dogs to cats, if there are 20 cats, there will be 35 dogs.
