The equation is y = 1/2 x + 13, where x is the number of days, and y is the length of the barrier
The absolute worst of the unshaded length is 5 to 2 all levels description of the unshaded length
Answer:
A. y = -10x
Step-by-step explanation:
An equation that has a line that passes through the origin (0, 0) is represented in slope intercept form as y = mx
Where, m is the slope.
Therefore,
The equation that represents a graph with a negative slope and passes through the origin would be:
y = -10x
-10 is the slope (m).
Answer:
Sandy will finish the race first.
Step-by-step explanation:
Let D be the total one sided distance in miles, ( between X and Y ),
We know that,


Since, from point X to point Y and back, Jack averages 30 miles per hour to point Y and 10 miles per hour back to point X.
So, the total time taken by Jack = 



Also, Sandy averages 20 miles per hour in both directions,
So, the total time taken by Sandy = 




∵ 0.133D > 0.10D
Hence, Sandy will finish the race first.