Explain why 17 tens and 1 hundred 7 tens have the same value

10 tens is a hundred and 17 - 10 is 7. So, it is equal to 1 hundred and 7 tens.

Hope this helps!

Ten tenths equals one hundred so if you had one, one hundred and 10 tenths it would be the same thing and as for the 7 tenths it equals 70 for both. (Sorry if the answer is confusing)

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

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