in a school library, 10% of the fiction books and 15% of the non-fiction books are new. given that the ratio of fiction books to non-fiction books is 9:5 and that there are 660 new books, what is the total number of books in the library

- "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."

answer: no

step-by-step explanation: because the big angle will spread away the 2 side that it is on and make the opposite side even longer.