Let a = Adult tickets, s = Student tickets; we are going to set up a system of equations.
8a + 4s = 880
a - s = 20
We are going to multiply the second equation by so that we can cancel out one of the variables and solve for the other. This gives you:
8a + 4s = 880
4a - 4s = 20
Notice the s-variables will cancel:
12a = 900
a = 75
Now we plug in the amount of adult tickets to solve for the student ones.
75 - s = 20
- s = - 55
Divide both sides by - 1
s = 55.
There were 55 student tickets sold and 75 adult tickets.
Answer:
Step-by-step explanation:
21.082=21082/1000=10541/500
it is a rational number
The answer is b, hope I helped (:
Answer:
-4.5
Step-by-step explanation:
subtract the numbers on a number line, or subtract normally and make it negative
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