out of the 25 students in Mrs.Green's class 19 have a pet What percent of the students in Mrs.Green's class have a pet

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29-12-2014
Mathematics

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out of the 25 students in Mrs.Green's class 19 have a pet What percent of the students in Mrs.Green's class have a pet

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Аноним Аноним · Answer 1 · 2014-12-29T13:07:46-05:00

Аноним Аноним

29-12-2014

[tex]method\ \#1\\\\\frac{19}{25}\times100\%=(19\times4)\%=\boxed{76\%}\\\\method\ \#2\\\\ \begin{array}{ccc}25&-&100\%\\\\19&-&p\ \%\end{array}\ \ \ |cross\ multiply\\\\\\25\cdot p=100\cdot19\\25p=1900\ \ \ \ \ |divide\ both\ sides\ by\ 19\\\boxed{p=76\ (\%)}[/tex]

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