14-03-2015
Mathematics

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divide £32 in a ratio of 3:7

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secret13 secret13

14-03-2015

[tex]3 + 7 = 10[/tex]

[tex]32 [/tex] ÷ [tex]10 = 3.2[/tex]

[tex]3.2[/tex] × [tex]3 = 9.6[/tex]

[tex]3.2[/tex] × [tex]7 = 22.4[/tex]

£9.60 : £22.40

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konrad509 konrad509

14-03-2015

[tex]3x+7x=\pounds32\\ 10x=\pounds32\\ x=\pounds3.2\\ 3x=3\cdot\pounds3.2=\pounds9.6\\ 7x=7\cdot\pounds3.2=\pounds22.4\\\\ \boxed{\pounds9.6 \text{ and } \pounds22.4}[/tex]

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