document.write( "Question 1011052: 7. William fills 1/3 of a water bottle in 5/9 of a
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Algebra.Com's Answer #626600 by MathTherapy(10810) $\"\"$ $\"About$

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7. William fills 1/3 of a water bottle in 5/9 of a
\n" ); document.write( "minute. How many bottles can he fill in a
\n" ); document.write( "minute? Please explain this to me so I can explain it to my grandaughter who is in 7th grade, but special education student. Thanks
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The easiest way to explain this is with proportions. We can say that:
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document.write( " ------- Substituting  & N (this is what's required) for number of water bottles, and , & 1 for amount of minutes
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document.write( "Since this is a proportion (fraction on either side of the equals sign), we can cross-multiply. This results in:
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document.write( "3(5N) = 9 ------- Cross-multiply, again
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document.write( "15N = 9
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document.write( "N, or number of water bottles = , or  of a water bottle \n" );
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