52. The length of a rectangle is 3 more than twice the width. The perimeter is 60 feet. Find the dimensions of the rectangle.

Let the length be x and the width be y.

x+3=2y

2x+2y=60

So, 2y=60-2x

60-2x=x+3

60=3x+3

57=3x

x=19

If x=19, then y=11

So, the dimensions are: length 19, width 11.

Let me know if this helps!

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."