Question

The music store sold 12 trumpets and 19 clarinets last month.

a) Write an equation to show the amount of money earned on trumpet and clarinet sales last month. Define your variables.

b) If clarinets sell for $139.95 and the store made $4578.45 from sales on the two instruments, find the price of a trumpet.

Answer 1

Answer:

a) let x = price of 1 trumpet

let y = price of 1 clarinet

12x + 19y

b)

12x + 19(139.95) = 4578.45

12x + 2659.05 = 4578.45

12x = 1919.4

x = $159.95