If Judy completes a puzzle by herself, it takes her 3 hours. Working with Sal, it only takes them 2 hours.

What is the missing value from the table that represents Judy's rate?

Question

If Judy completes a puzzle by herself, it takes her 3 hours. Working with Sal, it only takes them 2 hours.


What is the missing value from the table that represents Judy's rate?

babeberry · Answer

Rate unit: Puzzles/hours.

Person       Rate 
Judy:          1/3
Sal:            1/x
Judy&Sal:    1/2

babeberry · Answer

x is for how much hours for Sal to complete the puzzles himself.
1/3 + 1/x= 1/2

tylerbanks2001 · Answer

Thank you

babeberry · Answer

Anytime ^_^