First Question
circumference = pi * diameter
diameter = circumference/pi = 94.2 in./3.14 = 30 in.
The wheels have a 30-inch diameter.
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Second question
The area of a circle: area = pi * r^2
radius = diameter/2 = 94.2 in./2 = 47.1 in.
area = pi * r^2 = 3.14 * 47.1 in. * 47.1 in. = 6966 in.^2
Answer: 6966 in.^2
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Third question
The piece of felt has a width equal to the diameter of the wheel. The length has to be the same as 4 diameters.
4 * 94.2 in. = 376.8 in.
Answer: 376.8 in.
Answer:
15 miles
Step-by-step explanation:
To find the actual distance in miles between Lynwood and Forest Hill, we can use a rule of three:
If 0.25 inch on the map is equivalent to 1 mile, then 3.75 inch on the map is equivalent to what distance:
0.25 inch -> 1 mile
3.75 inch -> X miles
0.25/3.75 = 1/X
X = 3.75/0.25 = 15 miles
The actual distance between Lynwood and Forest Hill is 15 miles.
Answer:
$ 0.50
Step-by-step explanation:
Cost of 5 lunch rolls = $ 2.50
Cost of 1 roll
= 2.50 / 5
= $ 0.50
