SOLUTION: Peter sold watches ($7) and necklaces ($4) at a flea market. Total sales were $300. People bought 3 times as many watches as necklaces. How many of each did Peter sell? What were t

Algebra ->  Customizable Word Problem Solvers  -> Evaluation -> SOLUTION: Peter sold watches ($7) and necklaces ($4) at a flea market. Total sales were $300. People bought 3 times as many watches as necklaces. How many of each did Peter sell? What were t      Log On

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Question 997998: Peter sold watches ($7) and necklaces ($4) at a flea market. Total sales were $300. People bought 3 times as many watches as necklaces. How many of each did Peter sell? What were the total dollar sales of each?
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
n necklaces
w watches

Solve this system.
system%284n%2B7w=300%2Cw%2Fn=3%29


The exercise requires first assigning variables, and then TRANSLATE the description into symbolic statements, or a system of equations, and that is already done and shown. No real steps there. Just assign variables and write the symbolic statements.

Next, SOLVE THE SYSTEM for n and w. TWO LINEAR EQUATIONS in the variables n and w.

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You fill in the steps.
Final Results: 12 necklaces and 36 watches.