anonymous
  • anonymous
.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Vocaloid
  • Vocaloid
1/15 + 1/x = 1/20 start by multiplying both sides by 60
anonymous
  • anonymous
4+60=3?
anonymous
  • anonymous
@Vocaloid

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More answers

Vocaloid
  • Vocaloid
don't forget the x
anonymous
  • anonymous
4+60x=3?
Vocaloid
  • Vocaloid
(whoops, I forgot a negative sign) should be 1/15 - 1/x = 1/20 which gives us 4 - 60/x = 3
anonymous
  • anonymous
-60/x=-1?
Vocaloid
  • Vocaloid
yes
Vocaloid
  • Vocaloid
now multiply both sides by x
anonymous
  • anonymous
-60=-1x
Vocaloid
  • Vocaloid
good, so x = ?
anonymous
  • anonymous
60?
Vocaloid
  • Vocaloid
right, so x = 60 minutes
anonymous
  • anonymous
one more?
Vocaloid
  • Vocaloid
sure
anonymous
  • anonymous
Byron can fill a drying rack with dishes in 15 minutes. While Byron fills the drying rack, Emmitt takes dishes out of the drying rack and puts them in bins. With Emmitt taking dishes out of the drying rack, it takes 35 minutes for Byron to fill the drying rack. Which of the following can be used to determine the amount of time it takes for Emmitt to empty the drying rack if Byron is not adding dishes? 1 over 15 plus 1 over 35 equals 1 over x 1 over 15 minus 1 over x equals 1 over 35 1 over 35 minus 1 over x equals 1 over 15 1 over 15 minus 1 over x equals x over 35
anonymous
  • anonymous
vocaloid?
Vocaloid
  • Vocaloid
1/15 - 1/x = 1/35 same rule as last time
Vocaloid
  • Vocaloid
we don't actually need to solve for x this time ofc
anonymous
  • anonymous
B?
anonymous
  • anonymous
B right?
Vocaloid
  • Vocaloid
yes
anonymous
  • anonymous
thx i got a 100

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