You first divide both numbers by 4 to get one quarter which is the unit, and to get the rate, you divide 15 by 4 also. i got the unit rate is 3.75 points oer quarter.
The mean is calculated by adding up all of the given numbers and dividing by the number of numbers.
Lets, for ease of understanding, say that the first three number were 64...
Mean=(64+64+64)/3=192/3=64
Now, lets solve for the mean where 'x' is the unknown fourth number and 128 is the mean. (since, the answer said that when the fourth number was added the mean, 64, was doubled '64*2=128')
128=(64+64+64+x)/4
128=(192+x)/4
Multiply both sides by 4
512=192+x
subtract 192 from both sides
320=x
The missing number is 320..
Now lets double check our work.
Mean=(64+64+64+320)/4=512/4=128
Answer=320
All you have to do here is some simplifying.
6/12 = what
6 divided by 12 = 1/2
1/2 = 2/4
There! We have our missing value
6/12 = 2/4
Answer: c = 4
Answer:
B.
Step-by-step explanation: Because when you count them down to 3/5 It's more in the negative.
Some equivalent fractions are 2/6 , 3/9 , 4/12<span />
