150 12 1800
-------- . ------- = ----------- = 18
1 100 100
Answer: x=4
10x-3x=30-2
7x=28
X=4
We Know, Distance = Speed * Time
Here, Speed = 35 mi/hr
Time = 2.5 hr
Substitute their values into the expression,
Distance = 35 * 2.5 = 87.5
So, your final answer is 87.5 miles
Hope this helps!
Answer:
i cant see the writing, can u post a better pic?
Step-by-step explanation: thx
Answer:
So then the we have perfect linear association. Because the heights and weights of the men are similar.
Step-by-step explanation:
Let X represent the Height and Y the weigth
We have the follwoing dataset:
X: 70, 69
Y: 169, 164
n=2
The correlation coefficient is a "statistical measure that calculates the strength of the relationship between the relative movements of two variables". It's denoted by r and its always between -1 and 1.
And in order to calculate the correlation coefficient we can use this formula:
For our case we have this:
n=2
And if we replace in the formula we got:
So then the we have perfect linear association. Because the heights and weights of the men are similar.