The diameter of the wheel of a car is 77 cm. How many revolutions will it make to travel 121 km?

50,020 revs to nearest rev.

Step-by-step explanation:

r = 1/2 * diameter

Circumference of the wheel = 2 pi r

= 2 * pi * 1/2 * 77

= 77pi cms

1 km = 1000 * 100 cms so

The number of revolutions =  (121 * 100 * 1000) / 77pi

= 50,020 revs to nearest rev.

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in the math equation 8 x 7 = 56, the 8 and the 7 are both factors of 56, since in this lesson we will use square tiles to figure out the factors of a whole find as many different arrays as you can, but follow one important rule: all the rows must have the i can make two rows of nine, so 2 and 9 are both factors of 18.

step-by-step explanation: