justinsmith079osocib justinsmith079osocib
  • 06-07-2017
  • Mathematics
contestada

There were 480 people at a play. The admission price was​ $2 for adults and​ $1 for children. The admission receipts were​ $800. How many adults and how many children​ attended?

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musiclover10045
musiclover10045 musiclover10045
  • 19-07-2017

a = adult

c = children

 a+c=480

a=480-c

2a +1c =800

2(480-c)+1c = 800

960-2c+1c =800

-1c=-160

c=160

a=480-160 =320

320 adults

160 children


check 320*2 =640

160*1=160

160+640 = 800


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