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Tickets to the Valentines dance cost three dollars per person or $5 per couple. If $475 worth of tickets were sold in 180 people attended to the dance how many couples were there?

 Feb 22, 2020
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Let the of single persons =P
Let the number of couples =C

 

3P + 5C =475,...................(1)
P + 2C   =180....................(2), solve for P, C


P =50 - single persons
C =65 - couples x 2 =130 persons

 Feb 22, 2020

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