document.write( "Question 815390: Two kinds of rice costing $6/kg and $10/kg respectively are mixed in a ratio 3:2 by weight. What is the cost of the mixture per kg? \n" ); document.write( "

Algebra.Com's Answer #490930 by TimothyLamb(4379) $\"\"$ $\"About$

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i = inexpensive rice weight
\n" ); document.write( "e = expensive rice weight
\n" ); document.write( "i/e = 3/2
\n" ); document.write( "---
\n" ); document.write( "p = total cost
\n" ); document.write( "p = 6i + 10e
\n" ); document.write( "---
\n" ); document.write( "example i/e mixture, (3 kg of i) + (2 kg of e) for total of 5 kg:
\n" ); document.write( "p = 6i + 10e
\n" ); document.write( "p = 6(3) + 10(2)
\n" ); document.write( "p = 18 + 20
\n" ); document.write( "p = $38
\n" ); document.write( "---
\n" ); document.write( "price per kg:
\n" ); document.write( "$38 / 5 kg = $7.6/kg
\n" ); document.write( "---
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