a + 2.5s = 2820
a + s = 900
Using substitution, we can solve for one variable in terms of the other:
a = 900 - s
Substituting into the first equation:
(900 - s) + 2.5s = 2820
1.5s = 1920
s = 1280
Substituting back into the second equation:
a + 1280 = 900
a = -380 (this doesn't make sense, since we can't have negative tickets, so there must have been an error in the problem)
Georgia Connections Academy is selling tickets to its Spring Fling. Adult tickets cost $4 and student tickets cost $2.50. The school makes $2,820. Write an equation that represents this situation to find the cost of all adult and student tickets sold. Use the variable s for student tickets and a for adult tickets sold.
a +___s=____.
900 tickets are sold for the spring fling. Write an equation to represent this situation.
a+____=
Use the above systems of equations to determine how many adult and student tickets were sold.
_____ Adult tickets and _____
student tickets.
1 answer
1 answer