document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=303538>Question 303538</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The loudness L of a sound measured in decibles (db) is given by the formula: L=10*log (I ÷ I0) where I repesents the intensity of the sound measured in watts per square meters and Io = 10^-12.\r<BR>\n" );
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document.write( "The loudness of certain sound measures 30 db. If the intensity of the sound is multiplied by 10, what is the loudness in decibels of the new sound?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #217539 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=217539\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The loudness L of a sound measured in decibles (db) is given by the formula: L=10*log (I ÷ I0) where I repesents the intensity of the sound measured in watts per square meters and Io = 10^-12. <BR>\n" );
document.write( "The loudness of certain sound measures 30 db. If the intensity of the sound is multiplied by 10, what is the loudness in decibels of the new sound? <BR>\n" );
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document.write( "L = 10*log (I/Io)<BR>\n" );
document.write( "30 = 10*log(I/10^-12)<BR>\n" );
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document.write( "3 = log(I/10^-12)<BR>\n" );
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document.write( "I/10^-12 = 10^3<BR>\n" );
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document.write( "I = 10^-12*10^3<BR>\n" );
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document.write( "I = 10^-9<BR>\n" );
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