ovoxoxovocovockdnnes
ovoxoxovocovockdnnes
19-05-2016
Mathematics
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Respuesta :
mecca99
mecca99
19-05-2016
1) 3/5=9/x (cross multiply
)
3x=5(9)
3x=45
x=15
2)
2/4=x/12 (cross multiply
)
2(12)=4x
24=4x
6=x
3) 10/x=5/9 (cross multiply
)
10(9)=5x
90=5x
18=x
4) 5/6=x/18
5(18)=6x
90=6x
x=15
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