Answer:
q=15
Step-by-step explanation:
1/5q=9-2/5q
Multiply both sides by 5
q=9*5-2q
3q=45
q=15
<span>3x + 25 = $154
In the question it says "three times what Sara spent", so that's how I got 3x. The term "more than" not only means >, but can be used as another way to express the addition symbol in written equations. Hope this helps! </span>
Answer:
Step-by-step explanation:
We have been given that in a population of exam scores, a score of x=48 corresponds to z=+1.00 and a score of x=36 corresponds to z=-0.05.
To find the values of mean and standard deviation, we will use z-score formula as:
Let us solve for x (sample score).
Upon substituting our given values, we will get two equations as:
Upon substituting equation (1) in equation (2), we will get:
Therefore, the mean of the given data would be approximately 36.57.
Upon substituting in equation (1), we will get:
Therefore, the standard deviation for the given data would be approximately 11.43.
Answer:
hello your question is incomplete attached below is the missing data
answer : Y = 206.0859 - 1.3191 X
Step-by-step explanation:
Determine the regression equation using the data on revenue and distance
The regression line equation is written as :
Y = 206.0859 - 1.3191 X
applying the regression equation to data given to determine the value of Y and residual value