If a theater charges 6.00 for popcorn and 3.50 for a drink and filled 32 orders and colleted 149.50 how many popcorn and drinks did they sell?
Let the total number for popcorn be x and for a drink be y.
x + y = 32
6x + 3.5y = 149.5
Now lets solve the above simultaneous equation by substitution.
x = 32-y
6x + 3.5y =149.5
6(32-y) + 3.5y = 149.5
192-6y + 3.5y = 149.5
192 - 2.5y = 149.5
-2.5y = - 42.5
y = 17
so x = 32-17
x = 15
Hence, popcorn = 15 while drinks = 17.
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