The Bentonville Theater sold 765 tickets during Memorial Day weekend, bringing in $6350 in total ticket sales. General admission
tickets sell for $10 each. Tickets for children under 12 years old sell for $6 each. Senior tickets sell for $7 each. The number of general admission tickets sold (G) was 55 greater than the combined number of children's (C) and senior tickets (S) sold.
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Solving for a variable in an equation means, we are changing the subject of formula of the equation.
The equation of r is:
The equation is given as:
We start by multiplying both sides by 3
Rewrite as:
Divide both sides by
Cancel out common factors
Take square roots of both sides
Evaluate the right-hand sides
Make r the subject
Hence, the resulting equating for r is:
Read more about the subject of formulas at: