Chen wants to buy a model car and race track with his allowance. He has $30 to spend. The model car costs $8.50, and he will spe
nd the rest of the money on pieces of race track. Each piece of race track costs $2.25. A. Write an inequality to find the number of race track pieces he can buy.
B. Identify the meaning of your variable.
C. Explain how many pieces of race track he can buy and how much change he will receive from his $30.
So for this I would set up a ratio. 1/10=x/380 then you cross multiply so 1x380=10x. Then solve the equation so 380/10=x and you get 38in. Hope my explanation helped!
