Atire with a diameter of 30 inches is on a vehicle being driven 867 ft/min. to the nearest unit, how many revolutions per minute are made by the tire?

The number of revolutions per minute that are made by the tire is 110

Step-by-step explanation:

step 1

Find the circumference of the tire

The circumference of a circle is

we have

1 ft=12 in

Convert in to ft

----> the radius is half the diameter

substitute

Remember that one revolution represent the length of the circumference

so

using proportion

Find out how many revolutions are made by the tire in one minute

Let

x -----> the number of revolutions in one minute

therefore

The number of revolutions per minute that are made by the tire is 110

+25 = x

step-by-step explanation:

here x is the hypotenuse of a right triangle whose legs are 7 and 24.   by the pythagorean theorem, 7² + 24² must equal x²:

x² = 49 + 576 = 625.   thus, x = +√625 = +25 = x

pretty sure 750 each month!

step-by-step explanation: