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Mathematics 10 Online
OpenStudy (tennis5518):

question I probably know Im just to lazzzzy!

OpenStudy (tennis5518):

OpenStudy (tennis5518):

help

OpenStudy (tennis5518):

plz explain

OpenStudy (tennis5518):

@freckles

OpenStudy (tennis5518):

@dan815

OpenStudy (tennis5518):

@RhondaSommer

OpenStudy (tennis5518):

@Zale101

OpenStudy (dogzcatz):

40 inches 8x5

OpenStudy (tennis5518):

explain dont tell me directly

OpenStudy (anonymous):

i thought you were just lazy to do it

OpenStudy (tennis5518):

ughh was it 40

OpenStudy (tennis5518):

ugh true im tried

OpenStudy (tennis5518):

ok thxs anyway but @zale101 you can help

OpenStudy (tennis5518):

can anyone explain

OpenStudy (anonymous):

its simple ratio...4/8=20/l

OpenStudy (zale101):

Have you tried anything. Any ides to this question?

OpenStudy (zale101):

ideas*

OpenStudy (tennis5518):

yes

OpenStudy (zale101):

Are you familiar with ratios and cross multiplying?

OpenStudy (tennis5518):

I know

OpenStudy (zale101):

Show me what you did and what you already know

OpenStudy (tennis5518):

I didn't get it but I know what ratio and cross multiply

OpenStudy (zale101):

Apply that concept to your question.

OpenStudy (zale101):

I will set up an example. If i had a rectangle box 1 by 2, and i ordered a new one but larger and it was 4 but i don't know the length of it. But i know the ratio is by a half. |dw:1455513021301:dw|

OpenStudy (zale101):

The ratio is 1/2, so i know what ever fraction i got for (4/?) it will get further reduced to 1/2.

OpenStudy (zale101):

So, to do this problem, i will set it up in proportion. I know that my fraction (4/?) will equal to 1/2)

OpenStudy (tennis5518):

so i would need to do proportion

OpenStudy (zale101):

|dw:1455513195481:dw|

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