JHbrown
JHbrown
29-01-2015
Mathematics
Answered
is 4.2:1.5 proportional to 12:5
Answer :
Аноним
Аноним
29-01-2015
No it is not, because if you cross multiply 12 and 1.5 you'll get 18. But if you cross multiply 5 by 4.2 you'll get 21. And 18 is not equal to 21.
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