Translate each into algebraic expressions 1. the difference of 15 and 11
2. the qoutient of 50 and n
3. the difference of 18 an 14
4. x divided by 6
5. x times 11
6. half of 10
7. half of a number
8. the sum of a number and 5
9. the sum of 4 and 8
10.1 0 deceased by 7

- "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."

69.64%

step-by-step explanation: