Question

Carl can paint a room 3 hours faster than Jennifer can. If they work together, they can complete the job in 2 hours. Using complete sentences, explain each step in figuring out how to determine the time it would take Jennifer to complete this job on her own.

Answer 1

i really need help asap!!!!

Answer 2

Ok, so is carl can paint a room 3x the speed that jennifer can, we can label jennifer's speed as x, and they can complete the job in 2 hours. Therefore, set up the equation as \[1/x + 1/(x -3) = 1/2\] Now, multiply both sides by 2 to get \[1/x (2) + 1/(x-3) (2) = 1\] Now, solve for x to find how long it would take for jennifer to paint the room.\[2/x + 2/(x-3) = 1 \] After solving, you would get x =6,1. Therefore, it would take jennifer 6 hours to complete the job on her own

Answer 3

Is 6 an answer choice?

Answer 4

thank you @desiswag

Answer 5

aha yw :) Are you taking flvs?

Answer 6

yes its hard for me i still have other problems i dont know

Answer 7

Algebra 2?

Answer 8

Im taking that course too if you are so I could help you on some other problems :)

Answer 9

yess and really thank you i have no one to help me so its kind of hard for me and the examples dont help

Answer 10

When looking at a rational function, Charles and Bobby have two different thoughts. Charles says that the function is defined at x = −2, x = 3, and x = 5. Bobby says that the function is undefined at those x values. Describe a situation where Charles is correct, and describe a situation where Bobby is correct. Is it possible for a situation to exist where they are both correct? Justify your reasoning.
do you know this one by any chance@desiswag

Answer 11

What lesson is this?

Answer 12

Ok, so all you would have to do for this problem is you would have to come up with a rational function that has those three x values as solutions, and a function that has those three x values as extraneous solutions

Answer 13

5.08 and how would i do that im confused

Answer 14

oh lol im on 5.07 coincidence :P http://openstudy.com/study#/updates/52c57e44e4b0b729fb8c9981 try that one mathmale explains things better than I ever could

Answer 15

thanks are you doing the essay part of the test already?

Answer 16

Lol no not yet

Answer 17

i am its pretty hard i still got 2 left and ive been here for hours im so lost @desiswag

Answer 18

It takes me anywhere from 4 - 7 hours to do the essay portion of the tests I almost go insane :|

Answer 19

same here and my teacher grades so hard i always have to redo the tests

Answer 20

Ikr!! My average went down though :(

Answer 21

really? yeah im about to get a c cause of these tests

Answer 22

It's really hard for me because my math teacher at school wanted me to take it so I can do pre- calculus in 8th grade next year so I really didn't get a break from school :\

Answer 23

wow your so smart then you could do it!!!

Answer 24

could you help me on something again sorry to bother you

Answer 25

sure

Answer 26

on the first question i posted how would i keep solving 2/x+2/x-3=1

Answer 27

so what you would do first is you would find a common denominator. What factors do x and x-3 have in common?

Answer 28

dont they have in common x?

Answer 29

x is common to both denominators, so multiply x(x-3). That is the common denominator. Now, just like finding the common denominator of simple fractions,