Let r represent the radius of the smaller circle and R the radius of the larger
circle.
Apply ratios: the radius of the smaller circle to the radius of the larger circle.
r: R = 3 : 7.
I complete rotation = 360 degrees.
1st:
For one complete rotation of the smaller circle, the larger circle is rotated through (3/7)*(360) = 154.3 degrees
2nd:For one complete rotation of the larger circle, the larger circle is rotated through (7/3)*(360) = 840.0 degrees
This is equivalent to (840/360) = 2.3 rotations
Alternatively, use the ratios: The number of rotations = R/r = 7/3 = 2.3 rotations
Hope this helped☺☺
Answer:
13 degrees
Step-by-step explanation:
Because of the alternate interior angles, I know that angle EB is also 77. Now, knowing that it's a right angle, I can subtract 77 from 90 to get 13.
question number 2 answer is B
question number 3 answer is C the answer for the 4 one is A the answer for the 5 one is D
To answer this question, we will need to get the price of one cake in each package.
For package 1:
The package has 12 cakes and costs $6.80, this means that:
price of one piece = 6.80 / 12 = 0.5666 which is approximately $0.6
For package 2:
The package has 30 cakes and cost $15.16, this means that:
price of one piece = 15.16 / 30 = 0.505 which is approximately $0.5
Comparing the two prices, we will find that the best buy is the second package where the price of one piece is less.
