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OpenStudy (anonymous):
im tryin to figure out to work out a/20=3/15 Im not understandin the a portion
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OpenStudy (anonymous):
use cross products. multiply the top of one by the bottom of teh other, and vice versa, and set them equal: so 15a=20*3 15a=60 a=4
OpenStudy (anonymous):
Thx alot ymc1128
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