anonymous
  • anonymous
Two car washers, Michelle and Nancy, are working on your car. Michelle can complete the work in 6 hours, while Nancy can complete the work in 3 hours. How many hours does the car washing take if they work together? 3 2 six eighths four thirds
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
someone please help me . i really need to get this done soon
anonymous
  • anonymous
none whatsoever
anonymous
  • anonymous
well actually im thinking its 6/8 but idk

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kropot72
  • kropot72
In one hour Michelle, working alone, can complete 1/6 of the work. In one hour Nancy, working alone, can complete 1/3 of the work. Therefore if they work together for one hour they can complete 1/6 + 1/3 =1/2 of the work. Can you now see how many hours they would take to do the job when working together?
anonymous
  • anonymous
so is it 2?
anonymous
  • anonymous
@kropot72
kropot72
  • kropot72
Yes, 2 hours is correct.
anonymous
  • anonymous
thank you can you possibly help me with another?
kropot72
  • kropot72
You're welcome. I'll try to help.
anonymous
  • anonymous
Which of the following expressions is the conjugate of a complex number with 2 as the real part and 3i as the imaginary part? 2 + 3i 2 − 3i 3i + 2 3i − 2 I'm thinking it's 3i+2
anonymous
  • anonymous
@kropot72
kropot72
  • kropot72
|dw:1438557699594:dw| The above example might help you. Note the reversal of sign.
anonymous
  • anonymous
so would it be 3i+2?

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