Question

Question #2801c

Answer 1

32 gallons from the 1st brand. 48 gallons from the 2nd brand will do it.

Explanation:

If you will have a unit (volume) of final product, you can write down the equation as:

(Note that x is the 1st brand's contribution (volome) and (1-x) is 2nd brand's contribution)

`0.2*x + 0.95*(1-x) = 0.65*1`

`x=0.30/0.75`

`x=0.40 gal`
`1-x = 0.60 gal`

If you want to have 80 gallons (total final product), you are going to multiply 80 by these numbers. Therefore,

You need to take 32 gallons from Brand 1 and you need to take 48 gallons from Brand 2. Total volume of final product will be 80 gallons and its antifreeze content will be 65%.