katet04 katet04

19-02-2018
Mathematics

contestada

adult tickets for the school musical sold for 3.50 and student tickets sold for 2.50. on a given night 321 tickets were sold for 937.50 how many of each kind of ticket were sold

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musiclover10045 musiclover10045

19-02-2018

A+S = 321

A = 321-S

3.50A +2.50S = 937.50

3.50(321-S) + 2.50S = 937.50

1123.50 - 3.50S +2.50S = 937.50

1123.50 - S = 937.50

-s = -186

S = 186

321 -186 = 135

135 Adult tickets and 186 student tickets

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