Directions: Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Consider the expression
1-23 - (-45.3 + 35.2). It has been simplified below with some values unknown.
Line 1 : - - (-45.3 + 35.2) = -3 - (?)
Line 2 :
= ?
The missing value for line 1 is
The missing value for line 2 is
Il

step-by-step explanation:

where is the questions

where are the choices?

- "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."

yes

step-by-step explanation:

yes