Answer:
$20
Step-by-step explanation:
Two groups are going on a trip to a theater. The first group has 30 students and 4 adult chaperones. The second group has 25 students and 4 adult chaperones. The cost, in dollars, for each student ticket, s, and each adult ticket, a, can be determined using the system of equations below.
30s+4a=720
25s+4a=620
What is the cost for each student ticket?
Solution:
30s+4a=720
(1)
25s+4a=620 (2)
Subtract (2) from (1)
30s - 25s = 720 - 620
5s = 100
Divide both sides by 5
s = 100/5
= 20
s = $20
Substitute the value of s into (1)
30s + 4a = 720
30(20) + 4a = 720
600 + 4a = 720
4a = 720 - 600
4a = 120
a = 120 / 4
= 30
a = $30
Each student tickets cost $20
Answer:18
You have to divide
360 divided by 20 equals 18
Answer:
$103.71
Step-by-step explanation:
Take the amount of the dog food cans and multiply it by 7:
7×$1.29=$9.03
Take the new number and multiply it by 4, since we need to figure out how much he spends in 4 weeks:
$9.03×4=$36.12
Now add the cost of the bagged dog food to the cost of the 7 cans throughout the 4 weeks:
$36.12+$67.59=$103.71
Bisect typically means half but since we aren't given angle at the start so we can just have to solve for x.
(3x + 8) = (5x - 4)
3x = 5x - 12
-2x = -12
x = 6
Best of Luck!
