Question

will give medal .ellas two puppys weigh a total of 37 oz.one puppy weighs 3 oz more than the other.how much does the lighter puppy weigh.use the guess and test strategy to answer.please help.

Answer 1

can someone please help?

Answer 2

guess and test strategy ??

puppy A + puppy B = 37
A + B = 37
A = B + 3

(B + 3) + B = 37
2B + 3 = 37
2B = 37 - 3
2B = 34
B = 34/2
B = 17

A + B = 37
A + 17 = 37
A = 37 - 17
A = 20

check..
puppy A + puppy B = 37
20 + 17 = 37
37 = 37 (correct)

The lighter puppy (B) weighs 17 oz.

Thats the answer...but I think for the guess and test strategy...if you guess 1 puppy was 20 and 1 was 23.....20 + 23 = 43..that would be too high. If you guess 1 was 15 and 1 was 18....15 + 18 = 33....too low. And I think you can just sub in guesses until you find the correct one which is both puppies weighing 20 and 17 oz, with the lighter one being 17 oz.

Answer 3

ok thanks. :)