document.write( "Question 729739: Matty Kaminsky owns a new Volvo. His June monthly interest was $400. The rate is 8 ½ percent. Matty's principal balance at the beginning of June is: (Use 360 days) (Points : 1) \n" ); document.write( "
Algebra.Com's Answer #446239 by jim_thompson5910(35256)\"\" \"About 
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I = Prt\r
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\n" ); document.write( "\n" ); document.write( "400 = P*(0.085)*(30/360) ... Note: there are 30 days in june\r
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\n" ); document.write( "\n" ); document.write( "400 = P*(0.085)*(0.08333333333333)\r
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\n" ); document.write( "\n" ); document.write( "400 = P*0.00708333333333\r
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\n" ); document.write( "\n" ); document.write( "400/0.00708333333333 = P\r
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\n" ); document.write( "\n" ); document.write( "56470.5882353207 = P\r
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\n" ); document.write( "\n" ); document.write( "P = 56470.5882353207\r
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\n" ); document.write( "\n" ); document.write( "P = 56470.59\r
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\n" ); document.write( "\n" ); document.write( "This is the principal balance at the beginning of June
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