20 students are going to the trip and of those 20, 10 are bringing their own lunches
Answer: The radius is 12.54 feet, and the diameter is 25.08 feet.
Explanation: By applying the circumference into the equation r = , we get r = which simplifies the radius. And since radius is half of diameter, we multiply by 2 to get the diameter as well to solve the other blank in the problem.
Hope this helps! :D
Answer:
0.0000643
Step-by-step explanation:
The exponent is -5, making it 10 to the power of negative 5. When an exponent is negative, the solution is a number less than the origin or base number. To find our answer, we move the decimal to the left 5 times: 6.43 -> 0.0000643
0.55+0.54=1.08 and 0.54 divided by 2 is 0.28 which you add 1.08+0.27 which is 1.35. Your answer is 1.35
Answer:
The circumference of a circle with radius 3 is 3 times as big as the circumference of a circle with radius 1
Explanation:
Assume that the radius of the small circle is r
Increasing the radius by a factor of 3 means that the new radius of the large circle would be 3r
Circumference of circle can be calculated as follows:
circumference = 2*π*radius
For the small circle:
circumference = 2πr
For the large circle:
circumference = 2π(3r)
circumference = 6πr
Comparing the circumference of the two circles, we can deduce the increasing the radius by a factor of 3 will lead to the increase in the circumference of the circle by factor of 3 as well
Hope this helps :)