Search ns of Ratios (Remote Class) (Math TB 3)
3. It took Sam 15 minutes to run 3/5 of the way across a bridge. How long will it take him to run
the entire length of the bridge?
(20 Points)
25 minutes
26 minutes
18 minutes
29 min utes
watch the lion Keener as she cleaned part of the lion habitat The keeper

25 minutes

Step-by-step explanation:

Just use logic here. If it takes him 15 minutes to run 3/5 of a bridge, that means it takes 5 minutes to run 1/5. To find the time it takes to run the whole bridge, multiply 5 by 5, which makes 25.

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above

- "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."