The number of girls on a committee was supposed to be more than three times the number of boys. If 15 girls are on the committee, how many possible values are there for the number of boys?

5

Step-by-step explanation:

number of boys=x

number of girls= 3x=15

solution

3x/3=15/3

x= 5

There are 5 boys

- "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."