A teacher places 6 marbles in a bag. There are 1 blue marbles, 2 red marbles and 3 yellow marbles. A student draws one marble fr
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Answer:
(d) The sale was for a 29% decrease.
Step-by-step explanation:
Original/Regular price = $42.25
New/Sale price = $29.95
Difference in prices = 42.25 - 29.95 = 12.3
Formula for finding the percentage decrease of the sale
= × 100
× 100
=
≈ 29.11 %
≈ 29 %
Therefore, the percent off the watch during the sale was approximately 29%.
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Step-by-step explanation:
We have been given that Jeanie stated that the equation of this line best fit for the scatter plot is .
Let us find the slope of the line of best fit using points (2,7) and (4,6) in slope formula.
We can see that slope of line of best fit is .
Since the equation of a line written in slope-intercept is in form: , where m=slope of line, b= y-intercept.
Upon substituting m= and coordinates of one point in slope-intercept form of equation we will get,
Upon substituting m= and b=8 in slope intercept form, we will get,
We can see that equation of the line of best fit is . Jeanie got 1/2 as slope of the line of best fit, which is wrong, therefore, Jeanie's equation of the line of best fit is not correct.