document.write( "Question 550596: Widgets sell for $4 with a $9 shipping charge added on the order.\r
\n" ); document.write( "\n" ); document.write( "1. Write an equation that gives the total cost of an order in terms of the number of widgets. Use x to represent the number of ordered widgets and use y to represent the total cost in dollars.\r
\n" ); document.write( "\n" ); document.write( "2. Use the equation to find the total cost of an order of 12 widgets. Show all work and use complete sentences in your answer.\r
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\n" ); document.write( "\n" ); document.write( "Use your equation to find the total cost of an order of 257 widgets. Show all work.\r
\n" ); document.write( "\n" ); document.write( "3. Use the equation to find the number of widgets that can be ordered for $89. Show all work.\r
\n" ); document.write( "\n" ); document.write( "4. Use the equation to find the widgets that can be ordered for %2069. Show all your work.\r
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Algebra.Com's Answer #358900 by mananth(16946)\"\" \"About 
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Widgets sell for $4 with a $9 shipping charge added on the order.\r
\n" ); document.write( "\n" ); document.write( "1. Write an equation that gives the total cost of an order in terms of the number of widgets. Use x to represent the number of ordered widgets and use y to represent the total cost in dollars.
\n" ); document.write( "C(x)=9+4x\r
\n" ); document.write( "\n" ); document.write( "2. Use the equation to find the total cost of an order of 12 widgets. Show all work and use complete sentences in your answer.\r
\n" ); document.write( "\n" ); document.write( "C(12)= 9+12*4
\n" ); document.write( "C(12)=57\r
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\n" ); document.write( "\n" ); document.write( "Use your equation to find the total cost of an order of 257 widgets. Show all work.
\n" ); document.write( "C(257)=4*257+9
\n" ); document.write( "=1037\r
\n" ); document.write( "\n" ); document.write( "3. Use the equation to find the number of widgets that can be ordered for $89. Show all work.\r
\n" ); document.write( "\n" ); document.write( "C(x)=9+4x
\n" ); document.write( "89=4*x+9
\n" ); document.write( "89-9=4*x
\n" ); document.write( "80=4x
\n" ); document.write( "/4
\n" ); document.write( "x=20 widgets\r
\n" ); document.write( "\n" ); document.write( "4. Use the equation to find the widgets that can be ordered for %2069. Show all your work.\r
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