emilyklys475 emilyklys475

13-05-2018
Mathematics

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The sum of jason and mandy age is 35. ten years ago jason was double mandys age. how olda er they noew

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13-05-2018

Today: [tex]j+m=35[/tex]
10 years ago: Jason: j-10; Mandy: m-10
[tex]j-10=2(m-10) \\ j-10=2m-20 \\ j=2m-10 \\ \\ j+m=35 \\ 2m-10+m=35 \\ 3m=45 \\ m=15 \\ \\ j=2(15)-10=20[/tex]

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