Problema Solution

There are 7000 seats in stadium

Box seats cost $6.00, Grandstand cost $4.00, and Bleachers cost $2.00

When all seats are sold the revenue is $26,400

Box seats are 1/3 the amount of bleachers

how many of each type of seats are there?

Answer provided by our tutors

Let


x = the number of Box seats


y = the number of Grandstand


z = the number of Bleachers


There are 7000 seats in stadium:


x + y + z = 7000


When all seats are sold the revenue is $26,400:


6x + 4y + 2z = 26400


Box seats are 1/3 the amount of bleachers:


x = (1/3)z


We have the following system of equations:


x + y + z = 7000


6x + 4y + 2z = 26400


x = (1/3)z

........


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........

x = 400 box seats


y = 5,400 grandstand seats


z = 1,200 bleachers


There are 400 box seats, 5,400 grandstand seats and 1,200 bleachers.