In a club, the ratio of the number of girls to the number of boys is 3:1 The ratio of girls that play a musical instrument to girls that don't is 3:2.
The ratio of boys that play a musical instrument to boys that don't is 4:1.
What fraction of the children play a musical instrument?
Give your answer in its simplest from.

6(h+1)/2=a

a=area

step-by-step explanation:

its the same thing as a square or rectangle but after multiplying two sides you need to divide it by two.

answer: correct

step-by-step explanation:

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