document.write( "Question 1134732: F varies directly with m and inversely with the square of d.
\n" ); document.write( "if d=4 when F=75 and m=20 find d when F=200 and m=120 \n" ); document.write( "

Algebra.Com's Answer #752195 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+k+\"$ = the constant of proportionality
\n" ); document.write( " $\"+F+=+k%2A%28+m%2Fd%5E2+%29+\"$
\n" ); document.write( " $\"+d+=+4+\"$
\n" ); document.write( " $\"+F+=+75+\"$
\n" ); document.write( " $\"+m+=+20+\"$
\n" ); document.write( " $\"+75+=+k%2A%28+20%2F4%5E2+%29+\"$
\n" ); document.write( " $\"+k+=+%28+75%2A16+%29%2F20+\"$
\n" ); document.write( " $\"+k+=+%2875%2A4%29%2F5+\"$
\n" ); document.write( " $\"+k+=+15%2A4+\"$
\n" ); document.write( " $\"+k+=+60+\"$
\n" ); document.write( "-------------------------
\n" ); document.write( " $\"+F+=+k%2A%28+m%2Fd%5E2+%29+\"$
\n" ); document.write( " $\"+200+=+60%2A%28+120%2Fd%5E2+%29+\"$
\n" ); document.write( " $\"+d%5E2+=+%28+60%2A120+%29%2F200+\"$
\n" ); document.write( " $\"+d%5E2+=+%28+30%2A120+%29%2F100+\"$
\n" ); document.write( " $\"+d%5E2+=+36+\"$
\n" ); document.write( " $\"+d+=+6+\"$
\n" ); document.write( " \n" ); document.write( "

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