PON0004 PON0004

25-08-2016
Mathematics

contestada

what do you get if you divide 60kg in the ratio 5:7 and how did you get that answer?

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texaschic101 texaschic101

25-08-2016

5 : 7.....add them = 12

5/12 * 60 = 300/12 = 25 kg
7/12 * 60 = 420/12 = 35 kg

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dalendrk dalendrk

25-08-2016

60kg = 5x + 7x

12x = 60kg |divide both sides by 12

x = 5kg

5:7 ⇒ 5x:7x ⇒ (5·5) : (7·5) ⇒ 25 : 35

Answer: 25kg and 35kg.

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