Two gears are adjusted so that the smaller gear drives the larger one. The radius of the smaller gear is 2.5 cm while the radius of the larger one is 4.8 cm. If the smaller gear rotates 225°, through how many degrees will the larger one rotate?

3 is greater then both of those numbers

- "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."

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discount would be 35% off

step-by-step explanation: