.
Let x be the number of adults; then the number of children is (237-x).
The money equation (the revenue equation) is
5.20*x + 2*(237-x) = 810 dollars.
From the equation
x = = 105.
ANSWER. 105 adults and the rest, 237-105 = 132, are children.
CHECK. 5.20*105 + 132*2.00 = 810 dollars. ! Correct !
Solved.
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It is a standard and typical tickets problem.
There are different methods of solving such problems.
In this site, there are lessons
- Using systems of equations to solve problems on tickets
- Three methods for solving standard (typical) problems on tickets
explaining and showing all basic methods of solving such problems.
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Also, you have this free of charge online textbook in ALGEBRA-I in this site
- ALGEBRA-I - YOUR ONLINE TEXTBOOK.
The referred lesson is the part of this online textbook under the topic "Systems of two linear equations in two unknowns".
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