document.write( "Question 1128249: Write an equation describing the relationship of the given variables.
\n" ); document.write( "y varies jointly as x and the square root of z and when x = 8 and z = 49, then y = 840.
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Algebra.Com's Answer #744718 by josgarithmetic(39618)\"\" \"About 
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\n" ); document.write( "y varies jointly as the square of x and the square root of z.
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\n" ); document.write( "\n" ); document.write( "\"y=kx%2Asqrt%28z%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"k=y%2Fx%28sqrt%28z%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "The rest is done by substitution.
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