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.
The correct simplification of the expression is 9c^2 i think.
If the length is 24 cm, and the height is 6 cm, then do this:
Formula for a triangle is:
Area=base*height/2
24*6=144 cm squared.
Then, divide by 2:
144/2=72 cm squared.
Area=72 cm squared.
Answer:
36 cups of flour
Step-by-step explanation:
if 3 cups of flour=8 ounces.what about 96 onces you cross multiply
Answer:
Area is 81 mm^2
Step-by-step explanation:
A square has 4 equal sides.
let x be a side. so 4x=36
x =9
to find the area, multiply 9*9
=81
