the bowling alley charges a flat rate for a lane, plus a fee per shoe rental. use the equation C=15+3x to solve for the cost of getting a lane and four shoe rentals. enter your answer including cents

1 answer

To find the total cost using the equation \( C = 15 + 3x \), where \( C \) is the total cost, \( 15 \) is the flat rate for the lane, and \( 3x \) is the fee for shoe rentals:

  1. Here, \( x \) represents the number of shoe rentals. Since you want the cost for four shoe rentals, substitute \( x = 4 \) into the equation.

\[ C = 15 + 3(4) \]

  1. Calculate \( 3(4) \):

\[ 3(4) = 12 \]

  1. Now, substitute this value back into the equation:

\[ C = 15 + 12 \]

  1. Finally, add the two amounts:

\[ C = 27 \]

So, the total cost of getting a lane and four shoe rentals is $27.00.