Question

A model of a car is 6.3 in. long. The scale of the model to that actual car is 1:30. What is the length of the actual car to the nearest foot?

A. 19 ft
B. 16 ft
C. 21 ft
D. 12 ft

Answer 1

8.13 is the actual legth of the car, unless i misuderstood the question.

Answer 2

Option B.
`16\ ft`

Explanation:

we know that

The scale of the model to that actual car is equal to
`(1)/(30)(in)/(in)`

so

By proportion

Find the length of the actual car if the model of a car is
`6.3\ in`. long

`(1)/(30)(in)/(in)=(6.3)/(x)(in)/(in)\\ \\x=30*6.3\\ \\x=189\ in`

Convert to feet

Remember that

`1\ ft=12\ in`

`189\ in=189/12=15.75\ ft`

Round to the nearest foot

`15.75\ ft=16\ ft`