Tinyasainpotato
Tinyasainpotato Tinyasainpotato
  • 04-04-2018
  • Mathematics
contestada

a bowling ball has a diameter of 8.5 inches. If it is rolled down a 60-foor bowling lane, how many complete revolutions will it make?

Respuesta :

calculista
calculista calculista
  • 14-04-2018
we know that
A bowling lane is 42 inches wide and 60 feet long
1 ft-------> 12 in
60 ft-----> X
X=60*12------> X=720 in

[the length of a circumference]=2*pi*r
for r=8.5/2------> r=4.25 in
[the length of a circumference]=2*pi*4.25---------->26.69 in

if 26.69 in  represent---------------> 1 revolution
720 in (bowling lane)------------> X
X=720/26.69------> X=26.98  revolution

the answer is
26 revolutions
Answer Link

Otras preguntas

The data represent the ages of people working at a store. 19, 27, 20, 26, 20, 24, 32, 23, 20, 19, 21 What is the first quartile of these ages?
Give 3 examples to show work being done.
Please help??? Science SEMESTER REVIEW!!!!In a series of rock layers, a geologist finds fossils of a pine trees and oak trees in layers that are 1.0 m and 1.5
In the book: A Wrinkle in timeWhat advice, which was given by Mrs. Who, does Charles Wallace forget to follow?A.Only fools are afraid.B.Go off on your own when
how does  a star form?
How did allies hide from Germans D-day invasion plan?
What is the answer to split 56 in the ratio of 3:4
Which sentence correctly forms the plural of the letter R? A. Three R's make up her initials.
Which physical feature has most limited the movement of people living in North America ?
Find the sum of 2/9+1/9?