Answer: 800pi inches
=======================================
Explanation:
The formula to find the circumference of a circle is
C = pi*d
where
C = distance around the circle (aka circumference)
pi = 3.14 approximately
d = diameter
We know that the diameter of the wheel is d = 8, so
C = pi*d
C = pi*8
C = 8pi
is the circumference of the wheel
One full rotation will have the wheel cover a distance of 8pi inches. Imagine that wet paint is on the outer surface of the wheel. If the wheel is rolled out in a straight line, then the wet paint would cover a linear distance of 8pi inches along the flat ground. This is one full rotation, so 100 rotations covers 100*8pi = 800pi inches
Note: if we use pi = 3.14 as the approximation, then the hamster ran approximately 800*pi = 800*3.14 = 2512 inches if the wheel could move
Based on the information given, the percentage for the trip earnings rate for class A and B is 80% and 70% respectively.
<h3>How to calculate percentage.</h3>
From the information given, the trip earnings rate for A will be calculated thus:
= 16/20 × 100.
= 80%
The trip earnings rate for B will be calculated thus:
= 14/20 × 100
= 70%
Learn more about percentages on:
brainly.com/question/24304697
Answer:
e4fodor8rsidididi<em>2</em><em>f</em><em>2</em>
1. 9/10 + 7/9 = 81/90 + 70/90 = 151/90 = 1 61/90
2. 1/2-3/11 = 11/22-6/22 = 5/22
3. 2/5-1/15 = 6/15-1/15 = 5/15 =1/3
