document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=165645>Question 165645</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The problem is - a beach ball holds 800 cubic inches of air.  Another beach ball has a radius that is half of the larger ball.  How much air doess the smaller ball hold?  I know the formula for finding volume for a sphere - but I don't know how to use it without any additional information.  Thanks for your help in this. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #122105 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=122105\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The problem is - a beach ball holds 800 cubic inches of air. Another beach ball has a radius that is half of the larger ball. How much air doess the smaller ball hold? I know the formula for finding volume for a sphere - but I don't know how to use it without any additional information. Thanks for your help in this.<BR>\n" );
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document.write( "You could solve for the radius, then find the volume of the smaller ball, but that's not necessary.<BR>\n" );
document.write( "The volume is a function of the cube of the radius.  If the radius is doubled, the volume is 2^3 time, or 8 times.<BR>\n" );
document.write( "The 2nd ball's radius is 1/2, so its volume is (1/2)^3 times, or 1/8.<BR>\n" );
document.write( "So it's 100 cubic inches or air.\r<BR>\n" );
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