C because it's using the distributive property. It's breaking it down into sections.
Answer:
2 gallons of pure alcohol
Step-by-step explanation:
Let x represent the number of gallons of pure alcohol needed, and create an equation:
4(0.25) + x(1) = (x + 4)0.5
1 + x = 0.5x + 2
x = 0.5x + 1
0.5x = 1
x = 2
So, 2 gallons of pure alcohol should be added.
Sounds like you’re dealing with absolute value.
1. Cookies
2. Bananas
3. Bananas and ice cream are the closest
