document.write( "Question 758258: Please help me to solve this question:\r
\n" ); document.write( "\n" ); document.write( "9 + ? x 3/8 = 15
\n" ); document.write( "I tried to work out what ? was by logically thinking of the equation as 15 is 3/8's of 9 + ? what ever that figure is. I know that if I convert 3/8 to a decimal it is .375 and 3/8's is almost 4/8's which is a half and so I could calculate that if ? was the number 31
\n" ); document.write( "so the equation would look something like this:\r
\n" ); document.write( "\n" ); document.write( "9 + 31 x 3/8
\n" ); document.write( "40 x 3/8
\n" ); document.write( "= 3/8 x 40/1
\n" ); document.write( "= 120/8
\n" ); document.write( "=15/1
\n" ); document.write( "=15\r
\n" ); document.write( "\n" ); document.write( " but the answer they have given on the answer sheet is 16 or 016 but I just am lost on how they got ? to be 16? Could you please tell me how they can get this answer and where abouts I am going wrong in my calculations.
\n" ); document.write( "Many thanks for your help\r
\n" ); document.write( "\n" ); document.write( "Angie
\n" ); document.write( "email address gmbs@xtra.co.nz
\n" ); document.write( "

Algebra.Com's Answer #461342 by MathTherapy(10552)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "Please help me to solve this question:\r
\n" ); document.write( "\n" ); document.write( "9 + ? x 3/8 = 15
\n" ); document.write( "I tried to work out what ? was by logically thinking of the equation as 15 is 3/8's of 9 + ? what ever that figure is. I know that if I convert 3/8 to a decimal it is .375 and 3/8's is almost 4/8's which is a half and so I could calculate that if ? was the number 31
\n" ); document.write( "so the equation would look something like this:\r
\n" ); document.write( "\n" ); document.write( "9 + 31 x 3/8
\n" ); document.write( "40 x 3/8
\n" ); document.write( "= 3/8 x 40/1
\n" ); document.write( "= 120/8
\n" ); document.write( "=15/1
\n" ); document.write( "=15\r
\n" ); document.write( "\n" ); document.write( " but the answer they have given on the answer sheet is 16 or 016 but I just am lost on how they got ? to be 16? Could you please tell me how they can get this answer and where abouts I am going wrong in my calculations.
\n" ); document.write( "Many thanks for your help\r
\n" ); document.write( "\n" ); document.write( "Angie
\n" ); document.write( "email address gmbs@xtra.co.nz\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "You don’t need to make this more complicated than it is. Just solve it as an ordinary fractional algebraic equation\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Let ? be Q
\n" ); document.write( "Then 9 + ? x 3/8 = 15 can be rewritten as:\r
\n" ); document.write( "\n" ); document.write( "\"9+%2B+Q%283%2F8%29+=+15\"\r
\n" ); document.write( "\n" ); document.write( "\"9+%2B+3Q%2F8+=+15\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "72 + 3Q = 120 ------ Multiplying by LCD, 8
\n" ); document.write( "3Q = 120 – 72
\n" ); document.write( "3Q = 48
\n" ); document.write( "Q, or ? = \"48%2F3\", or \"highlight_green%2816%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "You can do the check!!\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Send comments and “thank-yous” to “D” at MathMadEzy@aol.com
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