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OpenStudy (anonymous):
4a/9 = 100/45
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OpenStudy (anonymous):
a = 5
OpenStudy (anonymous):
How did you get that answer ?
OpenStudy (anonymous):
45*a=100*9
OpenStudy (anonymous):
by cross multiplying
OpenStudy (anonymous):
45*4a=180a
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OpenStudy (anonymous):
Then don't you divide?
OpenStudy (anonymous):
=900
OpenStudy (anonymous):
900 divide by 180
OpenStudy (anonymous):
a=5 use same procedure for smilar questions
OpenStudy (anonymous):
9*100=45*4a 900=180a a=5
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