Here is how Han found LaTeX: 31.59\div13: long division problem showing 31.59 divided by 13 equal to 2.43

At the second step, Han subtracts 52 from 55. How do you know that these numbers represent tenths?
At the third step, Han subtracts 39 from 39. How do you know that these numbers represent hundredths?
Check that Han’s answer is correct by calculating the product of 2.43 and 13.

a variable is any characteristics, number, or quantity that can be measured or counted. a variable may also be called a data item. hope i !

- "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."

1st part is 64,000,000

2nd part 500,000

step-by-step explanation:

7 is the median   7.875 is the mean

step-by-step explanation:

3,4,5,6,8,11,13,13