Step-by-step Answer:
One of the properties of a least-squares regression line (line of best fit) is that the line always passes through the point (xbar, ybar).
Assuming the given "line of best fit" is a least-squares line, then we are given
a slope m=1.885 passing through (x0,y0)=(3.448,12.318).
Applying the standard point-slope formula:
(y-y0) = m (x-x0)
we get
y-12.318 = 1.885(x-3.448)
Expand and simplify,
y=1.885x -1.885*3.448 + 12.318, or
y=1.885(x) + 5.81852
(numbers to be rounded as precision dictates).
Each 1/5 equals 8 min because 24/3 = 8 (3 is from the 3/5)
2 miles = 10/5
3/5 mi = 24 min
6/5 mi = 48 min
9/5 mi = 72 min
+ 1/5 (8min) = 80 minutes or one and one third of an hour (1 hour 20 minutes)
Answer:
4/5=8/5
Step-by-step explanation:
Answer:
4y²+2 = ( 4y × 4y ) + 2
Step-by-step explanation:
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He used 16 oz of dark chocolate........he used 2/5 to make frosting....meaning he used 3/5 for the brownies.
2/5(16) = 32/5 = 6.4 oz for frosting
3/5(16) = 48/5 = 9.6 oz for the brownies
Therefore, he used (9.6 - 6.4) = 3.2 more oz in the brownies then in the frosting