A concert

A concert will take place at the stadium. If they sold 1/4 ticket on the first day, 2/5 of the rest on the second day, and 17,100 tickets left in the box office. What is the capacity of the stadium?

Correct answer:

x =  38000

Step-by-step explanation:

x/4+2/5(xx/4)+17100=x  x/4+2/5 (xx/4)+17100=x  9x=342000  x=9342000=38000  x=38000

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