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OpenStudy (anonymous):
In 2009, two tickets to a certain American band's concert and two tickets to a certain British band's concert cost, on average, a total of $576. At those prices, four tickets to see this American band and two tickets to see this British band cost $842. What was the average cost of these American and British band tickets in 2009?
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OpenStudy (anonymous):
2a+2b=576 4a+2b=842 solve the system of equations
OpenStudy (anonymous):
a=133 b=155
OpenStudy (anonymous):
Thats right
OpenStudy (anonymous):
thanks
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