2 toy cars cost 3 dollars 4 toy cars cost 6 dollars 6 toy cars cost 9 dollars 8 toy cars cost 12 dollars What is the cost of 18 toy cars? A$12 B$20 C$22 D$27
Mathematics · Middle School · Mon Jan 18 2021
Answered on
Given the statement:
2 toy cars cost 3 dollars, 4 toy cars cost 6 dollars, 6 toy cars cost 9 dollars, 8 toy cars cost 12 dollars. Determine the cost of 18 toy cars.
Solution:
In order to determine the cost of 18 toy cars, we must first find the unit rate or the cost per toy. To do so, we simply divide the total cost by the number of toys.
= $3/2
= $1.5
Each toy cost $1.5.
Multiply $1.5 by 18.
= ($1.5)(18)
=$27
Final answer:
18 toys cost $27.