SOLUTION: 9 gallons of a sugar solution was mixed with 6 gallons of a 90% sugar solution to make a 84% sugar solution. FInd the percent concentration of the first solution.

Question 198051: 9 gallons of a sugar solution was mixed with 6 gallons of a 90% sugar solution to make a 84% sugar solution. FInd the percent concentration of the first solution.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
9 gallons of a sugar solution was mixed with 6 gallons of a 90% sugar
solution to make a 84% sugar solution. FInd the percent concentration
of the first solution.
:
Let x = the percent of the 9 gallon sugar solution
:
9x + 90(6) = 84(9+6)
:
9x + 540 = 1260
:
9x = 1260 - 540
:
9x = 720
x =
x = 80% is the 1st solution
;
:
Check:
80(9) + 90(6) = 84(15)

RELATED QUESTIONS
9 gal of sugar solution was mixed with 6 gal of a 90% sugar solution to make 84% sugar... (answered by edjones,HydroKid)

9 gal. of a sugar solution was mixed with 6 gallon of a 90% sugar solution to make a 84%... (answered by richwmiller,HydroKid)

9 gal of a sugar solution was mixed with 6 gal. of a 90% sugar solution to make a 84%... (answered by jorel1380,HydroKid)

9 quarts of a sugar solution was mixed 6 quarts of a 90% sugar solution to make an 84%... (answered by ankor@dixie-net.com)

how many gallons of a 15% sugar solution must be mixed with 5 gallons of a 40% sugar... (answered by Theo)

11 qt. of a sugar solution was mixed with 9 qt. of pure water to make a 33% sugar... (answered by checkley77)

Mrs. Martinez mixes a 90% sugar cinnamon flavored solution with a 95% sugar... (answered by josgarithmetic)

a 9 gallon solution with 60% sugar is added with another solution with 90% sugar to make... (answered by josmiceli)

3 qt. of a sugar solution was mixed with 4 qt. of a 4% sugar solution to make a 40% sugar (answered by ptaylor)