SOLUTION: 8 friends went to the lake. some paid 4 dollars for tickets to the water slide the rest paid 7 dollars each for boat ride rentals the group paid 38 dollars in all. how many friends

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Question 454271: 8 friends went to the lake. some paid 4 dollars for tickets to the water slide the rest paid 7 dollars each for boat ride rentals the group paid 38 dollars in all. how many friends rented boats.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
s+b=8
4s+7b=38
solve for b
b=2 s=6
check
4*6+2*7=38
24+14=38
ok