document.write( "Question 1069899: To build the garden of your dreams you need 12 m cubed of soil containing 85% silt. you have two types of soil you can combine to achieve this: soil with 40% silt & pure silt. How much of each soil should you use? \n" ); document.write( "

Algebra.Com's Answer #684995 by josgarithmetic(39621) $\"\"$ $\"About$

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x, volume of 40% silt
\n" ); document.write( "12-x, volume of pure 100% silt\r
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\n" ); document.write( "\n" ); document.write( " $\"%2840x%2B100%2812-x%29%29%2F12=85\"$ \r
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\n" ); document.write( "\n" ); document.write( "Why dividing by 12?\r
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\n" ); document.write( "\n" ); document.write( "Remind yourself of what percent mean?
\n" ); document.write( "Numerator is expression for HOW MUCH silt.
\n" ); document.write( "Denominator is HOW MUCH VOLUME OF soil.\r
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\n" ); document.write( "\n" ); document.write( "Example of the same type - one variable for two-part mixture \n" ); document.write( "

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