6x-2y=16
(5x+y=24)*2
__________
6x-2y=16
10+2y=48 Add the equations”+”
—-
16x=64
X=4
So y=1
Answer:
the mean and standard deviation is 2300 and 100 respectively
Step-by-step explanation:
Given that
Mean = 2300
Standard deviation = 500
let us assume the x be the mean of living space
And, the sample is of 25 homes
We need to find out the mean and the standard deviation
So here mean = 2300
And, the standard deviation
= 500 ÷√25
= 500 ÷ 5
= 100
hence, the mean and standard deviation is 2300 and 100 respectively
Answer:
70 miles were driven this month
Step-by-step explanation:
suppose 100 miles were driven last month
30%= 30/100*100=30 miles
30% decreasewould be 100-30= 70 miles
Answer: 95,000
Step-by-step explanation:
$500,000 - $120,000 = 380,000
380,000/4 = $95,000
Answer:
D
Step-by-step explanation:
something about a formula lol i learned this yesterday i just dont know how to explain
