The average of four numbers 30.5. three of the numbers are 24.2, 14.5, 50.5 what is the fourth number?

32.8

Step-by-step explanation:

The average is calculated as

average =

let x be the fourth number, then

= 30.5 ( multiply both sides by 4 )

89.2 + x = 122 ( subtract 89.2 from both sides )

x = 32.8

Thus the fourth number is 32.8

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !

answer:

your answer is: c. 196 7/8 in^3.