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anonymous
 5 years ago
if a cinema took in $1270 in ticket sales for a movie that 220 people attended. child tickets are $4.50 and adults ate $6.50, how many children attended?
anonymous
 5 years ago
if a cinema took in $1270 in ticket sales for a movie that 220 people attended. child tickets are $4.50 and adults ate $6.50, how many children attended?

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sandra
 5 years ago
Best ResponseYou've already chosen the best response.0there are two unknowns, the number of child tickets sold and the number of adult tickets sold

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0so you know you need two equations to solve it

sandra
 5 years ago
Best ResponseYou've already chosen the best response.01. c + a = 220 2. 4.5c + 6.5a = 1270 3. Now you want to take the value of a in the first equation, and substitute it into the seocnd

sandra
 5 years ago
Best ResponseYou've already chosen the best response.04. 4.5c + 6.5* (220 c) = 1270

sandra
 5 years ago
Best ResponseYou've already chosen the best response.05. 4.5c  6.5c + 1430 = 1270

sandra
 5 years ago
Best ResponseYou've already chosen the best response.06. now get all of the c's on one side, and the plane numbers on the other

sandra
 5 years ago
Best ResponseYou've already chosen the best response.0so 1430  1270 = 6.5c  4.5c 160 = 2c c = 80
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