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Mathematics 8 Online
OpenStudy (anonymous):

help me please !!1

OpenStudy (anonymous):

what is your question?

OpenStudy (anonymous):

OpenStudy (ibbutibbu.):

HES MINE

OpenStudy (anonymous):

leave me alone ibbutibbu

OpenStudy (ibbutibbu.):

It's B

OpenStudy (anonymous):

jeweweaver6895

OpenStudy (ibbutibbu.):

Because 3/4 times 3 is 2 1/4

OpenStudy (anonymous):

i have 2 more questions

OpenStudy (anonymous):

He is right, because we have 3 screws that are 3/4 in long, you multiply 3/4 by 3 to get the total length. Sure what are youre questions?

OpenStudy (anonymous):

OpenStudy (anonymous):

ok u can answer this

OpenStudy (anonymous):

sure, for the first postcard, multiply the top and bottom parts of the fraction by 10 to get a common denominator, what do you get from that?

OpenStudy (anonymous):

i dont know really

OpenStudy (anonymous):

\[\left( \frac{ 4 }{ 10 } \right)\left( \frac{ 10 }{ 10 } \right)\] can you do that?

OpenStudy (anonymous):

just multiply across

OpenStudy (anonymous):

40/100

OpenStudy (anonymous):

is that right

OpenStudy (anonymous):

correct, now to find the total weight, you just add the two numerators together and leave the denominator as 100 so \[\left(\begin{matrix}40 \\ 100\end{matrix}\right)+\left(\begin{matrix}42 \\ 100\end{matrix}\right)\]

OpenStudy (anonymous):

is it 82 over 100

OpenStudy (anonymous):

yup! Good job!

OpenStudy (anonymous):

i got 1 more can u help me ?

OpenStudy (anonymous):

On a fishing trip, Amala caught 54 fish. She released 5/6 of the fish. How many fish did Amala release?

OpenStudy (anonymous):

ok so for this one, you need to find what 5/6 of 54 is, so you multiply the two: \[\left( \frac{ 54 }{ 1 } \right)*\left(\begin{matrix}5 \\ 6\end{matrix}\right)\]

OpenStudy (anonymous):

216/6

OpenStudy (anonymous):

270/6

OpenStudy (anonymous):

there you go :) now just simplify it, do long division to reduce that fraction

OpenStudy (anonymous):

i dont know how to do that

OpenStudy (anonymous):

ok, do you have a calculator?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

just do 270/6 then and that will give you the answer

OpenStudy (anonymous):

45

OpenStudy (anonymous):

thats right!

OpenStudy (anonymous):

can uhelp with mopre please

OpenStudy (anonymous):

go ahead :) can you give me a medal if you like my work? :)

OpenStudy (anonymous):

ok see u in a new disscussion

OpenStudy (anonymous):

cool thank you!

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