61% of x
X increased by 61%
X decreased by 61%

Use the formula found below on this webpage to find the percent change by replacing the given values:

Percent change = New - Old

|Old|

× 100%

Percent change = 73 - 61

|61|

× 100% =

12

61

× 100 = 19.67213115% (increase)

Where: 61 is the old value and 73 is the new value. In this case we have a positive change (increase) of 19.67213115 percent because the new value is greater than the old value.

Hope this helps, have a wonderful day/night, and stay safe!

1/4 because there is 4 grades.

- "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."