Answer:
5
Step-by-step explanation:
if xz is 15 and xy is 10 then we can infer that z is 10 and x is 5
Answer:
x+(x+1)=471
Step-by-step explanation:
Answer: 8000
Step-by-step explanation:
Answer:
g(x) = f(x + 2)
Step-by-step explanation:
The x value has been translated by 2
<em>Feel free to mark it as brainliest :D</em>
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
