How many full revolutions does a car tire with a diameter of 25 in make when the car travels one mile?

Step-by-step explanation:

we know that

The length of the circumference of a circle represent one revolution

so

The circumference of a circle is equal to

we have

substitute

Remember that

so

by proportion

Find how many full revolutions does a car tire make when the car travels one mile

Round to the nearest whole number

.

step-by-step explanation:

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47