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hello?? divide 28 in a ratio 3:4?

Sagot :

[tex]3x+4x=28\\ 7x=28\\ x=4\\\\ 3x=\boxed{12}\\ 4x=\boxed{16}[/tex]
First add up the total number of parts = 3+4 = 7
Now divide 28 by 7 = 4 (each part is 4)
Now substitute into the ratio=    3*4: 4*4  =  12:16 

Hope this helps! :)