Wilmer went up the hill for X minutes at a speed of y kilometers per minute. Then he went down the same path at a speed of z kilometers per minute, and it took him w minutes.]Write an equation that relates the variables x, y, z, and w

1/3 + 1/5 = 8/15.

step-by-step explanation:

hope it

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.

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

any of them that add up to 180 degrees.