document.write( "Question 1188566: Use the formula 𝑆 =(𝑄−4)/2 where Q is the input to a motor and S is the speed.
\n" ); document.write( "What is the speed of the motor when the input Q is -8°? \n" ); document.write( "
Algebra.Com's Answer #819695 by ikleyn(52878)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "There are two ways to use formulas.\r
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\n" ); document.write( "\n" ); document.write( "One way to do it blindly, when a person doesn't know the meaning of the formula and its parameters.\r
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\n" ); document.write( "\n" ); document.write( "In this case, simply substitute the given value to the formula and calculate.\r
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\n" ); document.write( "\n" ); document.write( "But in this way, the person is not guaranteed from making errors, since he (or she) does not understand the context.\r
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\n" ); document.write( "\n" ); document.write( "Another way is to do the job, having full explanations about the meaning of the formula and its parameters.\r
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\n" ); document.write( "\n" ); document.write( "In this case, do the same: substitute the given values into the formula and calculate.\r
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\n" ); document.write( "\n" ); document.write( "In this case, the person is protected to some degree from making conceptual errors.\r
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