Solve for xa. 20b. 14.5c.d. 10

For this we will be using proportions. In this case, our proportion is

Firstly, cross multiply:

Next, square root each side, and your answer will be 10 = x, or D.

alot

step-by-step explanation:

its a wood chuck that can chuck wood

- "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."