SxyDentalDiva Full Member 10+ Year Member Joined May 30, 2010 Messages 66 Reaction score 3 Points 4,571 Dentist Oct 10, 2010 #1 Advertisement - Members don't see this ad So I'm doing this QR question on Topscore and I don't understand the explanation they give. Can someone explain this question? How many gallons of pure orange pulp must be added to 30 gallons of a 20% solution of orange pulp to make it a 50% solution?
Advertisement - Members don't see this ad So I'm doing this QR question on Topscore and I don't understand the explanation they give. Can someone explain this question? How many gallons of pure orange pulp must be added to 30 gallons of a 20% solution of orange pulp to make it a 50% solution?
N NewBee12 Full Member 10+ Year Member Joined Jan 11, 2010 Messages 380 Reaction score 15 Points 4,621 Oct 10, 2010 #2 amount of pure orange pulp in the mixture is: x+6 ( 6= 30x0.2) total amount = 30+x therefore: (x+6)/(30+x) = 0.5 solve for x x=18 if you need more clarification let me know Upvote 0 Downvote
amount of pure orange pulp in the mixture is: x+6 ( 6= 30x0.2) total amount = 30+x therefore: (x+6)/(30+x) = 0.5 solve for x x=18 if you need more clarification let me know
