Use Guauss-jordan elimination to solve the following linear system:
5x - 2y = -2
-x + 4y = 4

- "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."

won't that be plagrisim thought?

step-by-step explanation:

answer: c. is your answer

step-by-step explanation: get me a black leather coat

2 apples

step-by-step explanation:

taking away equals subtraction. 6-4=2