Multiply the entire bottom eqn by 3 to get -3x + 9y = -15.
Add the two eqns together to cancel the x's and you get 11y = -11
Solve for y to get y = -1
Pick one of the two original eqns and plug y back in:
-x + 3(-1) = -5; simplify:
-x -3 = -5
-x = -2
x = 2
So your answer is (2, -1).
Answer: $338 decrease. $4,862 total at the end of the year.
Step-by-step explanation: 6.5% of $5,200 is $338. $,5,200 - $338 = $4,862
Hope this helps!
Answer:
<h2><em>
a11= -11 a12=-16 a13=6 a14=-10</em></h2>
Step-by-step explanation:
I answered this question.
Answer: y=-8x-5
Step-by-step explanation:
find the two points
mark the first x poin x1 and the second x poin x2 amd the first y point y1 and the second y point y2 then subtract y1 by y2 and then undeeneath that subrtrax x1 by x2 and y intercept is b.
Answer:
a) 0.92; b) 84%
Step-by-step explanation:
First we enter the data into a graphing calculator. Use the values for X, The number of tourists, in the first list and the values for Y, the number of riders, in the second list.
Bring up the scatter plot and then run the linear regression. We get the equation
y = 1.59x + 5.06.
For part a,
The correlation coefficient, r, is 0.92. This means the equation is a good fit for the data.
For part b,
The coefficient of determination, r², tells us what percentage of variation in the dependent variable, y, is explained by the independent variable, x. This value is 0.84, which is 84%.