can't figure out the following.

1.) 2.1/3.5 [] 3/7 - this is equal to or true statement

2.) r/3.5 = 7.2/9

solve each proportion

15/m-2 = 3/14

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- Feb 26th 2008, 05:08 PMNostradamusUsing proportions (7th grade math)
can't figure out the following.

1.) 2.1/3.5 [] 3/7 - this is equal to or true statement

2.) r/3.5 = 7.2/9

solve each proportion

15/m-2 = 3/14 - Feb 26th 2008, 05:17 PMTI-84
$\displaystyle \frac{15}{m-2} = \frac{3}{14}$

$\displaystyle 3m - 6 = 210$

$\displaystyle 3m = 216$

$\displaystyle m = 72$