How many times does a tire with a diameter of 30 in. rotate when it travels a mile? **Tip: As there are 63,360 in. in each mile, 63,360 divided by circumference = number of full rotations. Round up to the next whole number. * 673 rotations 90 rotations 1345 rotations 336 rotations
336 rotations
To calculate the number of rotations, we first need to find the circumference of the tire. The formula for the circumference of a circle is C = πd, where d is the diameter. In this case, the diameter is 30 inches, so the circumference is C = π * 30 = 94.2478 inches.
Next, we divide the total distance traveled in inches (63,360 inches) by the circumference of the tire to find the number of full rotations. 63,360 / 94.2478 ≈ 673.006 rotations, which we round up to the next whole number, 674 rotations.
Therefore, a tire with a diameter of 30 inches will rotate approximately 336 times when traveling a mile.