shinedivneonebytime:
A builder was building a fence. In the morning, he worked for 2/5 of an hour . in the afternoon he worked for 9/10 of an hour How many times as long did he work in the afternoon than in the morning
shinedivneonebytime:
im still confuse d
carmelle:
1 hour = 60 mins 60/5 = 12 12 + 12 = ?
shinedivneonebytime:
24
carmelle:
So that means the builder worked for 24 minutes in the morning
shinedivneonebytime:
im stil confused
shinedivneonebytime:
how am i supposed to do this
carmelle:
dividing
shinedivneonebytime:
can some one else help me
shinedivneonebytime:
in a diffrent way
justus:
Hello there. First, 9/10=2/5 so we divide both sides by 9/10, so would be 2/5÷9/10 = 4/9
shinedivneonebytime:
um im still confuesd why would we
shinedivneonebytime:
also i put it in and its coming up as wrong i put 4/9
justus:
In the morning, the builder worked 4/9 times as long as he worked in the afternoon.
shinedivneonebytime:
why would we divide both sides by 9/10
shinedivneonebytime:
just so confusing
jimthompson5910:
Consider a similar problem: In the morning he worked for 4 hours. In the afternoon he worked for 12 hours. How many times as long did he work in the afternoon than in the morning?
jimthompson5910:
I realize now that 12 hours in the afternoon isn't realistic, but let's ignore that bit for a moment.
shinedivneonebytime:
wait wait im confused why are you giving me a difffrent problem
jimthompson5910:
I'm using whole numbers instead of fractions, since fractions are often a pain to deal with.
shinedivneonebytime:
ok
shinedivneonebytime:
so how do answer the question im giving you
jimthompson5910:
as @carmelle was writing out 2/5 of an hour = (2/5)*60 = 24 minutes 9/10 of an hour = (9/10)*60 = 54 minutes He worked 24 minutes in the morning and 54 minutes in the afternoon How many times larger is 54 compared to 24?
shinedivneonebytime:
what do you mean by how much larger is 54 compared to 24?
jimthompson5910:
24 * ____ = 54 what number goes in the blank space?
jimthompson5910:
In other words, what is x in the equation 24x = 54 ?
shinedivneonebytime:
um 2.25
shinedivneonebytime:
?? hello
jimthompson5910:
correct
jimthompson5910:
so he worked 2.25 times longer in the afternoon compared to the morning
jimthompson5910:
as a fraction 2.25 = 9/4
shinedivneonebytime:
it says incorrect
shinedivneonebytime:
but how
jimthompson5910:
Did you type in 2.25? or 9/4?
shinedivneonebytime:
9/4
shinedivneonebytime:
and i tried typing 2.25 and it says wrong also
jimthompson5910:
Try 2.25 maybe. It's possible that your teacher wants a mixed number If so, then 9/4 = (8+1)/4 9/4 = 8/4 + 1/4 9/4 = 2 + 1/4 9/4 = 2 & 1/4
jimthompson5910:
0.25 = 1/4 = one quarter 2.25 = 2 and a quarter = 2 & 1/4
shinedivneonebytime:
thank you i have one more question
jimthompson5910:
go ahead
shinedivneonebytime:
A zookeeper is 6 and 1/4 feet tall A young giraffe in his care is 9 and 3/8 tallHow many times as tall as the zookeeper is the giraffe?
shinedivneonebytime:
i need help with this also
shinedivneonebytime:
helo
shinedivneonebytime:
hello
shinedivneonebytime:
heloooooo
shinedivneonebytime:
hello
carmelle:
hello
shinedivneonebytime:
hi
shinedivneonebytime:
can you help me
jimthompson5910:
sorry I was away, but I'll let @carmelle answer
carmelle:
she posted the question. I think someone is helping her
carmelle:
she/he
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