You need 121 rolls. Packages of 8 rolls and 12 rolls. You do not want any left over. Give three examples of the number of packages you could purchase.

Question

You can use 8 roll and 12 roll packages. 121 is the amount rolls I need without any left overs. I need three examples for this problem.

Answer 1

They are correct....

 

121 = 8x + 12y  where x is the # of 8 roll packs and y is the # of 12 roll packs

 

121 - 8x = 12y

 

 

(121 - 8x)/12 = y

 

121 and 8 have no common factors.

Niether does 121 and 12.

So they will neither divide nor cancel.