# Substitution

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There are 155 people at the basketball game. Tickets for the game are \$2.50 for students and \$4 for adults. If the total ticket money received is \$492.50 how many students and adults attended the game?

• Substitution -

A = 155 - S

\$2.50S + \$4.00A = \$492.50

Substitute 115-S for A in the second equation and solve for S. Insert that value into the first equation to solve for A. Check by putting both values into the second equation.

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