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Mathematics 7 Online
OpenStudy (anonymous):

three of four numbers have a sum of 22. if the average of the four numbers is 8, what is the fourth number?

OpenStudy (anonymous):

with the average 8 we can get the sum of the 3 numbers

OpenStudy (anonymous):

4 numbers*

OpenStudy (anonymous):

how would i work it out

OpenStudy (anonymous):

simply 8 x 4= sum of 4 numbers u get this part?

OpenStudy (anonymous):

mhm

OpenStudy (anonymous):

what's the definition of average?

OpenStudy (anonymous):

like when the sum of the numbers is divided by x?

OpenStudy (anonymous):

um yea when x stands for the number of numbers

OpenStudy (anonymous):

total numbers or just the 3 tht the questions speaks of

OpenStudy (anonymous):

sum of the three out of four numbers is given which is 22

OpenStudy (anonymous):

first we have to find out the sum of all numbers which is 4 numbers

OpenStudy (anonymous):

k

OpenStudy (anonymous):

so we have 8 x 4 = 32

OpenStudy (anonymous):

ooooooooo

OpenStudy (anonymous):

10

OpenStudy (anonymous):

good god been out of school for a year :/

OpenStudy (anonymous):

no worries ppl tend to forget basic stuff easily somehow;)

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