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Sam is building a model of an antique car. The scale of his model to the actual car is 1:10. His model is 181/2 inches long.how long is the actual car ?

Sagot :

If his model car is 181/2 inches and its relation to the actual car is 1:10, then the actual car size is 10 times 181/2 which is 1810/20 inches.

I hope it'll help :)