Step-by-step explanation:
80$ is original price so 100%
markup by 35% make price 135%
crossmultiplication
ans=108
Compute the difference quotient:
(<em>f</em> (4) - <em>f</em> (1)) / (4 - 1) = (-3 - 12) / 3 = -15/3 = -5
Answer:
The answer is A.
Step-by-step explanation:
When you multiply by a negative number, you MUST change the sign.
Answer:
7+5x+9=−3x
7+5(-2)+9=−3(-2)
7+-10+9=6
-3+9=6
6=6
Step-by-step explanation:
7+5x+9=−3x
7+5(-2)+9=−3(-2)
7+-10+9=6
-3+9=6
6=6
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
