The circumference of a circle is C=2πR, where R is the radius of the circle and π≈3.14.
So if we open the circumference of the circle into a straight line segment, the length of this segment is C=2πR≈2*3.14*R=6.28R
4 rotations mean 4 circumferences that is 4 segments of length 6.28R,
which makes a linear distance of 4*6.28R=25.12R
i: the radius of the smaller wheel is R=r, thus it covers a distance of 25.12r feet
ii: the radius of the smaller wheel is R=2r, thus it covers a distance of 25.12*2r=50.24r (feet)
50.24r is twice 25.12r, thus the larger wheel traveled Twice the distance of the smaller one.
Answer: the larger covered twice the distance of the smaller.
The formula for simple interest is:
A = P(1+rt)
Where P = amount borrowed
r = interest rate
t = time of loan
A = 5000(1 + 0.125*2)
A =6,250
The total amount she paid back was $6,250
For her monthly payment divide total paid back by 24 months ( 2 years = 24 months)
6250 / 24 = 260.42
Her monthly payment was $260.42
Answer:
18.75%
Step-by-step explanation:
percent increase =
× 100%
Increase in cost = $38 - $32 = $6
percent increase =
× 100% =
= 18.75%
Answer:
The correct answer is b.
Step-by-step explanation:


No real solutions.