This table shows how many male and female students attended two different
1 answer:
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Answer: 12 hours
Step-by-step explanation:
Given : Working together, it takes Sam, Jenna, and Francisco two hours to paint one room.
When Sam works alone, he can paint one room in 6 hours. When Jenna works alone, she can paint one room in 4 hours.
Let 't' be the time taken by Francisco to paint one room on his own.
Then , we have
Rate of work of Sam +Rate of work of Jenna + Rate of work of Francisco =Rate of work they all do together
i.e.
i.e.
i.e.
i.e.
i.e.
i.e.
i.e. t= 12
Hence, Francisco would take 12 hours to paint one room on his own.
Use the Pythagorean theorem. We have legs with lengths of 15 and 20 miles, now let's solve for the hypotenuse.
Your answer is 25 miles. Hope this helps! :)
Your answer is 25 miles. Hope this helps! :)