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OpenStudy (anonymous):
If y varies directly as x and y = 14 when x = 8, find x when y = 21. A. 24 B. 12 C. 36 D. 16
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OpenStudy (anonymous):
14 : 8 21 : x cross multiply
OpenStudy (anonymous):
i got 1.14
OpenStudy (anonymous):
then you did not do it correctly
OpenStudy (anonymous):
14x=8 *21 x = 21 *8/14
OpenStudy (anonymous):
its b ... sry im acting dumb :(:(.. its like 3 in the morning and if i dont finish my work im going to fail :(
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OpenStudy (anonymous):
im sry :(
OpenStudy (anonymous):
hey, no problem. just try to keep it straight in the calculator, otherwise you will be prone to making mistakes. brackets are important.
OpenStudy (anonymous):
ok i will.
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