Question: A formula for solving work problems involving two people was shown in the movie clip and proven in #1. Is there a formula for three

A formula for solving work problems involving two people was shown in the movie clip and proven in #1. Is there a formula for three people?

a) You cannot assume the product of the rates divided by the sum will work for 3 or more people. Using the rates from question #4, show that the amended formula below does not give you the same answer as question #4.

?=??? /?+?+?

b) Take the formula1/a+1/b+1/c=1/xand solve for x.

(HINT: This formula will not match the formula in part 5a)

question 1 says Solve the equation1/a+1/b=1/xforx. Show your work.

question 4 says Jack can mow the baseball grounds in 2 hours; Mike can mow the same grounds in 3 hours; and Chris can mow the grounds in 4 hours. How long will it take to mow the baseball grounds if Jack, Mike, and Chris work together?

Leave your answer in proper fraction form, then round to 1 decimal place.

Using your rounded answer, how many minutes would that be?

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