Wednesday math problems
week
tanisha's friend juan laid 2 rulers end to end and out a strip of paper so it was
as long as the 2 rulers. if he uses the strip of paper to measure and tanisha
uses the ruler, who will get a bigger number? why?

- "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."

180-142=38 for the acute angle next to the entry

90+38=128

180-128=52

a=52

step-by-step explanation: