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December 20, 2014

December 20, 2014

Posted by **Rose** on Monday, October 27, 2008 at 8:00pm.

I set up the equation as x:120,3:5

x/120=3/5 3/120=360, 360 divided by 5=72

the answer in the book is 45, need help

- MATH -
**Reiny**, Monday, October 27, 2008 at 8:32pmIt should have been x/120 = 3/8

which gives x = 45

notice AB:BC = 3:5

so AB could be 3 units, BC 5 units, making AC 8 units.

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