Answer: $9
Step-by-step explanation:
Let the cost for adults be a
Let the cost for students be b.
The first van transported 2 adults and 5 students and cost $77. This will be:
2a + 5b = $77
The second van transported 2 adults and 7 students and cost $95. This will be:
2a + 7b = $95
2a + 5b = 77 ...... equation i
2a + 7b = 95 ........ equation ii
Subtract equation ii from I
-2b = -18
b = 18/2
b = $9
An student cost $9
Put the value of b into equation i
2a + 5b = 77
2a + 5(9) = 77
2a + 45 = 77
2a = 77 - 45
2a = 32
a = 32/2
a = 16
An adult costs $16
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️





♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
9mph because 20 minutes time 3 is one hour so multiply 3 by 3 to get 9
I would say 8.0 Because if you do 12.6-4.9 you get 7.7 ...hope that helped
Answer:
2F /r = m
Step-by-step explanation:
F=1/2 mr
Multiply each side by 2
2F = 2*1/2 mr
2F = mr
Divide each side by r
2F/r = mr/r
2F /r = m