ShmoopTube

00:02

Okay sy match members We have a mean question for

00:05

you Here the mean of abc and ten is sixteen

00:09

What does the mean of a b and c Are

00:11

here our potential answers here Yeah it's one mean problem

00:19

way beat that one death Still it has nothing on

00:21

us because we mean business using the algebraic definition of

00:26

mean which is the same thing as average Take the

00:29

given information the problem to set up an equation Well

00:31

the average of four numbers is there some divided by

00:34

four So what do we know We know this a

00:36

plus B plus c plus ten divided by four is

00:38

sixteen well it's just multiply both sides by four teo

00:42

cancel out the fraction thing they're so we've got a

00:45

plus B plus c plus ten is sixty four or

00:49

interested in a plus b plus c so think of

00:51

this sum is a single variable that we want to

00:53

isolate shipwrecked in from both sides and that gets us

00:56

a b and c equal to fifty for wealthy average

00:59

of a b and c is a plus b plus

01:02

c over three And we know that a b and

01:05

c total two Fifty for so just divide by three

01:08

Well in california fifty for over three is eighteen Same

01:11

deal in texas so the meaning of a b and

01:13

c is eighteen and that's our answer It see and 00:01:17.204 --> [endTime] we're smoked

Full Transcript