Posted by **jazz** on Saturday, November 1, 2008 at 8:05pm.

Find the amount in each case.

a) 8% is 56 kg.

can u set up cross multiplication for this?

8/100=x/56

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**Ms. Sue**, Saturday, November 1, 2008 at 8:10pm
a) 0.08 * 56 = ?

b) Yes. That's a ratio and can be corss-multiplied.

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**jazz**, Saturday, November 1, 2008 at 8:15pm
but why does the question say "8% IS 56"? why wouldn't it say 8% OF 56?

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**Writeacher**, Saturday, November 1, 2008 at 8:20pm
If it's saying "8% is 56" then your task is to find out what 100% is, I guess. So in that case, your ratio works.

If it said "8% **of** 56" then 56 would be the 100% and you'd need to multiply to find what 8% is.

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**jazz**, Saturday, November 1, 2008 at 8:22pm
oh ok that makes sense. thanks so much u 2 ur amazing!

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**Ms. Sue**, Saturday, November 1, 2008 at 8:23pm
Oops. I goofed. Sorry. My fingers got ahead of my brain.

I think the problem means that 8% of a number is 56 kg.

0.08 x = 56

x = 56 / 0.08

x = 700

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**jazz**, Saturday, November 1, 2008 at 8:25pm
thats ok everyobdy makes mistakes! :) ok ill try it that way.

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