holiday0215 holiday0215

14-10-2014
Mathematics

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X=8, y=20 find y when x=42

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ashley98 ashley98

14-10-2014

You can make a proportion of 8/20 to 42/x and then simply cross multiply from there to solve for y

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jlstockwell jlstockwell

14-10-2014

make a proportion with 8 over 42 and 20 over a variable. then cross multiply and solve.

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