the total mass of 6 rugby players is 540kg and the mean mass of 14 ballet dancers is 40kg. Find the mean mass of the group of 20 rugby players and ballet dancers​

Mean mass of 20 rugby player = 55

Step-by-step explanation:

Given:

Mass of 6 rugby players = 540 kg

Mean mass of 14 ballet dancer = 40 kg

Find:

Mean mass of 20 rugby player

Computation:

Total mass of ballet dancer = 14 x 40

Total mass of ballet dancer = 560 kg

Total mean mass of 20 rugby player = [540 + 560] / [6 + 14]

Mean mass of 20 rugby player = 1100 / 20

Mean mass of 20 rugby player = 55

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180

the answer is d

hope this