Phineas can build a rocket in 7 hours while Ferb can do the same work in 14 hrs. If they work together for 2 hours and after 2 hours, Ferb left, and let Phineas finished the task alone, how many more hours did it take Phineas to finish the building the rocket

Phineas can build a rocket in 7 hours while Ferb can do the same work in 14 hrs. If they work together for 2 hours and after 2 hours, Ferb left, and let Phineas finished the task alone, how many more hours did it take Phineas to finish the building the rocket

Intermediate Algebra

19th Edition

ISBN:9780998625720

Author:Lynn Marecek

Publisher:Lynn Marecek

Chapter7: Rational Expressions And Functions

Section7.5: Solve Applications With Rational Equations

Problem 7.101TI: Alice can paint a room in 6 hours. If Kristina helps her it takes them 4 hours to paint the room....

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Question

Phineas can build a rocket in 7 hours while Ferb can do the same work in 14 hrs. If they work together
for 2 hours and after 2 hours, Ferb left, and let Phineas finished the task alone, how many more hours
did it take Phineas to finish the building the rocket

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