a = adult ticket price
s = student ticket price
---
7a + 2s = 87
---
4a + 6s = 74
4a = 74 - 6s
a = 74/4 - (6/4)s
a = 37/2 - (3/2)s
---
7a + 2s = 87
7(37/2 - (3/2)s) + 2s = 87
7(37/2) - 7(3/2)s + 2s = 87
(259/2) - (21/2)s + 2s = 87
(21/2)s - 2s = (259/2) - 87
(21/2)s - (4/2)s = 259/2 - 174/2
(17/2)s = 85/2
---
s = 85/2(2/17)
s = 85/17
---
Answer:
s = $5
a = $11
---
Answer:
C
Step-by-step explanation:
55% is the same thing as 0.55. 0.55(300) equals 165
Hope this helps! Please give brainliest!!
Answer:
[-9,11]
Step-by-step explanation:
The domain is the x values that the line is on, basically. You use brackets because the points are included.
Answer:
The first one is x = 19
The second one is x = 17
Step-by-step explanation:
The first one:
(4x + 3) + (x - 8) = 90 ---> becasue the angle is 90 degrees
substitute 19 and check
The second one:
(7x + 10) + (3x) = 180 ---> because the angle is 180 degrees
substitute 17 and check
Hope this helps! :]
