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25-11-2014
Mathematics

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Earl runs 75 meters in 30 seconds.How many meters does earl run per second?

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25-11-2014

[tex]75\ meters\ in\ 30\ second\\\\ x\ meters\ in\ 1\ second\\\\ Proportion:\\ 75-30\\x-1\\\\cross\ multiplication\\\\ 75=30x\ \ \ \ | divide\ by\ 30\\\\ x=2,5meters\\\\ In\ 1\ second\ he\ will\ run\ 2,5meters.[/tex]

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