Anumber has the digits 2,7, and 5. to the nearest 100, the number rounds to 800. what is the number?

752

Step-by-step explanation:

For the number to be rounded off to 800, it needs to be either 750 or above or 850 and below.

With the given numbers, we can only have the following combinations:

257   ~  300

275   ~  300

527   ~  500

572   ~  600

725   ~  700

752   ~  800

And hence, 752 is the only combination of numbers that fits.

Hope this helps!

the answer is b.

step-by-step explanation:

identity property is where 0+whatever number=whatever number. basically 0+ a number.

- "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."