Homework Help: algerbra

Posted by kelly on Monday, March 17, 2008 at 8:54am.

AN ORCHESTRA CONSISTS OF STRINGS INSTRAMENTS AND WIND INSTIMENTS IN A RATIO OF 9 TO 4. THERE ARE 91 STRINGS AND WIND INSTRUMENTS IN THE ORCHESTRA. hOW MANY STRING INSTRUMENTS ARE THERE? how many wind instruments? Use a system of equation to model each situation. solve by any method.

algerbra - Reiny, Monday, March 17, 2008 at 9:00am
let the number of string instruments be 9x
let the number of wind instruments be 4x

(notice 9x:4x = 9:4)

then 9x + 4x = 91

I will let you finish it.
algerbra - key, Tuesday, April 1, 2008 at 8:01pm
7x

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