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at a fottball game, 432 tickets where sold for 18240 dollars. adult ticket=50 and kids ticket=20. how many of each ticket where sold?

 Jan 29, 2015

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 #3
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OMG. Thank you so much. it realy helped. ill be posting more mathproblems soon. thx so much   <3

 Jan 29, 2015
 #1
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plz help quick

 Jan 29, 2015
 #2
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Let x be the number of kids tickets sold and y be the number of adult tickets sold

So we have  

x + y = 432

And the number of each type of ticket sold times its price gives us the total reveue....so we have

20x + 50y = 18240          and using the first equation and subtracting x from both sides, we have.... y  = 432 - x     and subbing this into the 2nd equation for y, we have

20x + 50(432 -x) = 18240   simplify

20x + 21600 - 50x = 18240  

-30x + 21600 = 18240     subtract 21600 from each side

-30x = -3360     divide by -30 on each side

x =112  and that's the number of kids tickets sold

And  y= 432 - x =  432 - 112  = 320   and that's the  number of adult tickets sold

 

 Jan 29, 2015
 #3
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+5
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OMG. Thank you so much. it realy helped. ill be posting more mathproblems soon. thx so much   <3

Guest Jan 29, 2015

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