Answer:
Question 1: Fish A=7 inches, Fish B=5 inches
Question 2: Labor fee=$13.55, Each quart costs $2
Question 3: 412 adult tickets, 780 student tickets
Step-by-step explanation:
Question 1:
1. Lay out a system of equations:
Marta's aquarium: 3A+2B=37
Hank's aquarium: 3A+4B=47
2. Solve
2B=10
B=5
3A+2(5)=37
3A+10=37
3A=27
A=7
Question 2:
1. Lay out a system of equations:
5x+y=23.55
7x+y=27.55
2. Solve
2x=4
x=2
5(2)+y=23.55
10+y=23.55
y=13.55
Question 3:
1. Lay out a system of equations:
x+y=1192
5x+y=2840
2. Solve
4x=1648
x=412
412+y=1192
y=780
