Contestants in the Run-and-Bike-a-thon run for a specified length of time, then bike for a specified length
of time. Jason ran at an average speed of 5.6 mi/h and biked at an average speed of 20.8 mi/h, going a
total of 14.6 miles. Seth ran at an average speed of 11.2 mi/h and biked at an average speed of 18.8 mi/h,
going a total of 18 miles. For how long do contestants run and for how long do they bike? Round to the
nearest hundredth if necessary,
Contestants run
hour and bike
hour.

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explanation

the graph has a slope of 1/3 because each time you move up 1, you go to the right 3. so, slope = rise/run = 1/3. we can cross choice a off the list since we want a slope of 3, rather than 1/3.

the first table shown has a slope of -3. this is because the rise is -6 and the run is 2, so slope = rise/run = -6/2 = -3. note how x increases by 2 each time (run) and y drops by 6 each time (rise). choice b can be eliminated.

the second table has a slope of 3. each time x goes up by 1, the y values increase by 3. slope = rise/run = 3/1 = 3. alternatively you can use the slope formula to prove that the slope is 3 here. use any two rows of values to generate the two points. choice c is one of the answers

the third table also has a slope of 3. let's use the slope formula to prove as such. i'm going to use the first two rows of the table. so i'll use the two points (2,1) and (5,10)

m = slope

m = (y2-y1)/(x2-x1)

m = (10-1)/(5-2)

m = 9/3

m = 3 so we get a slope of 3

choice d is the other answer

no not all of them.

step-by-step explanation:

some of them have a square base.

christopher is 272,195 year old

step-by-step explanation: