anonymous
  • anonymous
If it takes 3 days for 10 workers to finish building one house, how may days will it take 15 workers to finish 4 houses?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
i hate word problems
anonymous
  • anonymous
me too =(
anonymous
  • anonymous
we can find the unit rate per worker i guess

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More answers

anonymous
  • anonymous
hows that? all i know is, is that they build 1 house in 3 days so 1/3
anonymous
  • anonymous
ten workers can build one third of a house per day
anonymous
  • anonymous
so each worker builds \(\frac{1}{30}\) of a house per day that is the unit rate per worker
anonymous
  • anonymous
yea
anonymous
  • anonymous
how did u get that/. and y do u divide or multiply?
anonymous
  • anonymous
i divided \(\frac{1}{3}\) by \(10\) to get \(\frac{1}{30}\)
anonymous
  • anonymous
but why do u divide instead of multiplying?
anonymous
  • anonymous
ok lets go slow
anonymous
  • anonymous
k
anonymous
  • anonymous
you already said the \(\frac{1}{3}\) of a house per day right?
anonymous
  • anonymous
yes
anonymous
  • anonymous
but that was not for one worker, that is for 10 workers working together
anonymous
  • anonymous
ohhhhhhh i see so to find how much they get done PER WORKER we have to divide!!
anonymous
  • anonymous
so each single worker does one -tenth of that work i.e. \[\frac{1}{3}\times \frac{1}{10}=\frac{1}{30}\]
anonymous
  • anonymous
right divide by 10 or multiply by 1/10 same thing
anonymous
  • anonymous
we are still not done though
anonymous
  • anonymous
ohhh ok
anonymous
  • anonymous
now you have 15 workers right?
anonymous
  • anonymous
yea so multiply by 15 to see how much work 15 workers can do
anonymous
  • anonymous
exactly \[15\times \frac{1}{30}=?\]
anonymous
  • anonymous
2/15
anonymous
  • anonymous
hmm no careful
anonymous
  • anonymous
what is fifteen times one thirtieth?
anonymous
  • anonymous
i simpilfied
anonymous
  • anonymous
not correctly though
anonymous
  • anonymous
15/30= 1=2
anonymous
  • anonymous
oops 1/2
anonymous
  • anonymous
1/2 right
anonymous
  • anonymous
yea
anonymous
  • anonymous
they build half a house per day one how in two days
anonymous
  • anonymous
how long before they build 4 houses?
anonymous
  • anonymous
so do 1/2 * 4?
anonymous
  • anonymous
again lets go slow
anonymous
  • anonymous
kk
anonymous
  • anonymous
they build half a house per day right?
anonymous
  • anonymous
yes
anonymous
  • anonymous
so one house takes how long to build?
anonymous
  • anonymous
1 house every 2 days
anonymous
  • anonymous
right
anonymous
  • anonymous
if it takes two days to build one house, how long to build four?
anonymous
  • anonymous
proportions
anonymous
  • anonymous
?
anonymous
  • anonymous
|dw:1436380956032:dw|
anonymous
  • anonymous
one house in two days two houses in four days three houses in six days four houses in eight days
anonymous
  • anonymous
or your way
anonymous
  • anonymous
or \[\frac{1}{2}T=4\\ T=4\times 2\]
anonymous
  • anonymous
ahhhhh i c.... nice thank you satellite <3333
anonymous
  • anonymous
any way you choose
anonymous
  • anonymous
yw
anonymous
  • anonymous
even though you are not my moma's boyfriend
anonymous
  • anonymous
kekekeke it's an inside joke between me and my friends
anonymous
  • anonymous
oooh

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