Using a balance scale and three weights, you can weigh any whole number of pounds from 1 to 13 lb. What are the weights? A. 1 lb 4 lb 5 lb c. 1 lb 5 lb 10 lb b. 1 lb 3 lb 9 lb d. 2 lb 6 lb 8 lb

Question

Mathematics

Ainsley Mayer

10 July, 16:13

Using a balance scale and three weights, you can weigh any whole number of pounds from 1 to 13 lb. What are the weights? A. 1 lb 4 lb 5 lb c. 1 lb 5 lb 10 lb b. 1 lb 3 lb 9 lb d. 2 lb 6 lb 8 lb

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Answers (1)

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Miss Kitty · Answer 1

I think the answer is b. 1, 3 and 9 pounds.

To weigh Left pan Right pan

1 pound 1 object to be weighed

2 3 1 + object

3 3 object

4 3+1 object

and so on

Answer is 1, 3 and 9 pound weights.