How many gallons of pure alcohol should be added to 40 gallons of a 20% solution so
1 answer:
Answer:
8/3
Step-by-step explanation:
i put equations as this:
x+40 = y
where x is galllons of pure mixture and y is the gallons of the new mixture
the other equation i id was:
x+0.2(40) = 0.25y
x+8 = 0.25y
y = 4x+32
solve using substitution
(x+40) = 4x+32
x = 4x-8
-3x = -8
x = 8/3
You might be interested in
The two numbers that differ by 46 is 23
Answer:
13 is the answer:)
Step-by-step explanation:
f(-2)= 3* (-2)² + 1
= 3*4 + 1
= 13
Answer:
6
Step-by-step explanation:
4 / 2/3
Think of it like this.
4 / 2/3 (if this were in fraction form)
4 * 3/2 (Reciprocal)
12/2
6
It would be B because-2 is x and 4 is y
Answer:
Its A dude
Step-by-step explanation:
