Aman has 80 cents in his pocket in nickels, dimes, and quarters. he has the same number of each type of coin. what is the total number of coins that he has in his wallet?

   he has 6 coins in his pocket

   the number in his wallet is unknown

Step-by-step explanation:

Since there are equal numbers of coins, we can deal with them as a group. One group consisting of a nickel, dime, and quarter has a value of 40 cents. Since the total value of the coins is twice that, the man has two groups of 3 coins in his pocket, or 6 coins.

arc length = 6.63311 ft.

step-by-step explanation:

the formula the arc measure is:

arc length s=2πr(c)/360

where:

c   is the central angle of the arc in degrees

r   is the radius of the arc

π   is pi, approximately 3.142

using the above formula we get

s =

thus we find that arc length of an arc for a circle of radius 20 feet and central angle 19 degrees is

6.63311 feet