Nate is helping to redesign his basement. He is in charge of choosing and buying the paint. He wants a specific shade of green, so he is going to combine blue and yellow paint in the ratio of 1:3. If he needs 8 gallons of paint, how much yellow paint does he need to buy?
A 24 gallons
B 2 gallons
C 6 gallons
D 4 gallons
To combine blue and yellow paint in a ratio of 1:3, Nate would need a total of 4 parts (1 + 3) for every gallon of paint.
If he needs 8 gallons of paint, he would need a total of 8 x 4 = 32 parts of paint.
Since the ratio is 1:3, the yellow paint would be 3 parts out of the total 4 parts for every gallon of paint.
Therefore, Nate would need to buy 8 x (3/4) = <<8*(3/4)=6>>6 gallons of yellow paint.
Thus, Nate needs to buy 6 gallons of yellow paint, so the answer is C) 6 gallons.