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There are 450 seats in the lower level of a concert hall with b balcony seats in the upper level. So far, 170 tickets have been sold, which is 1/5 if the total number of seats in the concert hall. How many balcony seats are in the concert hall?

 Feb 10, 2020
 #1
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1/5 x = 170     solve for x   the total seats in the concert hall     then    x - 450 = balcony seats.

 Feb 10, 2020
 #2
avatar+11646 
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There are 450 seats in the lower level of a concert hall with b balcony seats in the upper level. So far, 170 tickets have been sold, which is 1/5 if the total number of seats in the concert hall. How many balcony seats are in the concert hall?

 

laugh

 Feb 10, 2020

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