710 points 10% decrease show the steps

Do 710 divided by 10 and you will get 71. Then do 710 minus 71 and you will get 639

710 decreases by 10%

multiply 710 by .9 (this is 90%)
^ the reason we multiply by .9 and not .1 is because we are taking away that 10% from 100% (which is 710)

710 × 0.9 = 639

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

Just divide the x axis (the top) by 2 or multiply the y axis (the bottom) by 2