SOLUTION: 1. A costumer recently purchased 16 tickets with seats in either the lower level that costs 205 pesos or upper level that costs 95 pesos. He paid a total of 2,620 pesos for the tic

Question 1160226: 1. A costumer recently purchased 16 tickets with seats in either the lower level that costs 205 pesos or upper level that costs 95 pesos. He paid a total of 2,620 pesos for the tickets. How many lower level and upper level tickets did he buy?
2. Tickets are sold at $20 for adults and $10 for students. If the revenue from ticket sales was $12000 and 740 people attended the play, how many adult tickets were sold?�
3. Cris has $4.85 in coins. If he has six more nickels than dimes and twice as many quarters as dimes, how many coins of each type does he have?
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Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
L+U=16
205L+95U=2620
multiply top by -95 to eliminate U
-95L-95U=-1520
110L=1100
L=10 lower level for 2050
U=6 upper level for 570
***************************
A+S=740
20A+10S=12000
-10A-10S=-7400
10A=4600
A=460 adults ($9200)
S=740-460=280 students ($2800)
***************************
dimes are x
quarters are 2x
nickels are x+6
.10x+.25(2x)+.05(x+6)=4.85
.65x+0.30=4.85
.65x=4.55
x=7 dimes ($0.70)
x+6=13 nickels ($0.65)
2x=14 quarters ($3.50)
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