if the compound ratio of 7:5and8:x is 84:60.find x
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Step-by-step explanation:
product of antecedents::produćț of concequents.
=7×8:5×x
=56:5x
=56:5x::84:60
56×60::5x×84
3360=420x
42x=336
x=336÷42
x=8
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