One week, 72 people got a speeding ticket. the next week, only 36 people got a speeding ticket. what a the percent of change in speeding tickets?
( explain)

Hello.

So to solve this problem, you have to find the difference of 72 and 36. So 72 - 36 = 36. 36 will be the percentage. Then you have to find the total, which is 72 + 36 = 108. 
Basically, you have to find 36% of 108. 

36 / 100 = 0.36
0.36 x 108 = 38.88 

Have a great day! :)

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm