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Please help explanation if possible

Please help explanation if possible-example-1

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Answer:

612 adults

361 students

Explanation:

To solve this question, set two equations:

Let x be number of adults and y be number of students.

As there are in total 937 people, the equation would be the sum of both adults and children:


x+y=937


x=937-y ...... ( 1 )

As the total sale amount is $1109, the equation would be to add up the ticket fee:


2x+0.75y=1,109 ...... ( 2 )

Put ( 1 ) into ( 2 ):


2(937-y)+0.75y=1,109


1874-2y+0.75y=1,109


-1.25y=-765


y=763/1.25


y=612

Put y into ( 1 ):


x=973-612


x=361

Therefore there are 612 adults and 361 students.

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