Problem 7. (1 point) Problem 9. (1 point) The number y is 9 less than 4 times another number x. Their sum How many gallons of a 70% alcohol solution and a 20% alcohol is 31. solution must be mixed to get 5 gallons of a 50% alcohol solution? Find x and y. 70% solution: gallons X= 20% solution: - gallons y= Answer(s) submitted: Answer(s) submitted: (incorrect) (incorrect) Problem 10. (1 point) Problem 8. (1 point) A value 3 times a smaller number is 7 less than a larger number . A total of 780 tickets were sold for a game for a total of $2780. If Their difference is 27. adult tickets sold for $4 each and child tickets cost $3 each, how many of each kind of ticket were sold? Find the numbers. Adult Tickets: Smaller: Child Tickets: Larger: - Answer(s) submitted: Answer(s) submitted: (incorrect) (incorrect) Generated by OWeBWork, http://webwork.maa.org, Mathematical Association of America