Answered

9. It takes 2 hours for Andi to finish
shoveling the snow after a large
storm. Kristy needs 4 hours to
finish the same work alone. How
long will it take them both to do
this job if they work together?



Answer :

GinnyAnswer

Final answer:

To find how long Andi and Kristy take to complete the job together, their work rates are combined using basic math.


Explanation:

To solve this problem, we can use the concept of work rates. Andi's work rate is 1 job per 2 hours, and Kristy's is 1 job per 4 hours. Combined, their work rate is 1 job per (1/2 + 1/4) hours. This simplifies to 1 job per 1/3 hours (or 3 hours).


Learn more about Work Rates here:

https://brainly.com/question/49734865


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