Answer:
Adult ticket: $7
Child ticket: $2
Step-by-step explanation:
Set up a system of equations where a represents the cost of one adult ticket and c is the cost of one child ticket:
2a + 3c = 20
a + 4c = 15
Solve by elimination by multiplying the bottom equation by -2:
2a + 3c = 20
-2a -8c = -30
Add them together:
-5c = -10
c = 2
Now, we can plug in 2 as c to find the value of a:
2a + 3c = 20
2a + 3(2) = 20
2a + 6 = 20
2a = 14
a = 7
Answer:
-x 7
Step-by-step explanation:
Answer:
M' is {-5, -4, -3, -2, -1, 0, 1, 3, 5, 6}
Step-by-step explanation:
Answer:
3/4 or 75% are boys
Step-by-step explanation:
