2x + 5y = 16,3x-5y=-1

the answer is  

Step-by-step explanation:

if you want an explanation lemmie know but I rly dont feel like putting one bc its a lot to do but that is the correct answer lol

and try using Symbolab, I use it all the time it gives the correct answer and it gives good explanations

idk

step-by-step explanation:

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."