My teacher taught me a simple equation for these types of problems:
(percent of solution × amount of solution) + (percent of solution × amount of solution) = (percent of solution × total amount of solution)
in simple terms: %amount + %amount = %total amount
We know don't know how much gallons of 60% solution we need so it will be represented as x. We dont know the total amount either so it would have to be both solutions added together so 50 + x. Now lets solve:
(0.60)(x) + (0.24)(50) = (0.50)(50 + x) simplify/ distribute
0.6x + 12 = 25 +0.5x get all xs on one side and numbers on other
0.1x + 12 = 25
0.1x = 13 divide both sides by 0.1 to find x
x = 130
You need 130 gallons of 60% solution.
Answer:
B- 1 inch= 2 feet
Step-by-step explanation:
For this make a fraction, and then simplify. This will show the scale factor.
So, the answer will be 1 inch=2 feet.
I believe that it is C, mind you I could’ve got it wrong. It’s been awhile since I’ve done that kind of math.
Answer:Its a line segment
Step-by-step explanation:
A line segment is between two points.
Divide the value of "b" by 2 and then square it.
(b / 2)²
= (120 / 2)²
= (60)²
= 3600
Therefore the value of z is 3600. That's at least what I believe lol
