To the nearest tenth, how many times greater is the circumference of the full size car's tire when compared to the circumference of the miniature car's tire?
To calculate the circumference of a circle, we use the formula:
Circumference = 2πr
where r is the radius of the circle.
Let's assume the radius of the full-size car's tire is R, and the radius of the miniature car's tire is r.
Thus, the circumference of the full-size car's tire is:
C1 = 2πR
And the circumference of the miniature car's tire is:
C2 = 2πr
To find how many times greater the circumference of the full-size car's tire is compared to the circumference of the miniature car's tire, we divide C1 by C2:
C1/C2 = (2πR) / (2πr)
The π values cancel out, leaving us with:
C1/C2 = R/r
So, the circumference of the full size car's tire is R/r times greater than the circumference of the miniature car's tire.