andy has 38 coins made up of quarters and half dollars, and their total value is $14.50. how many quarters does he have?

answer:

non or 2

step-by-step explanation:

answer:

csdfsfsfsdff

step-by-step explanation:

- "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."

49%

step-by-step explanation:

when you realize that you dont know just realize i just took a test and im so smart