document.write( "Question 239377: Use an inequality and the five-step process to solve the problem.\r
\n" ); document.write( "\n" ); document.write( "If the formula R = -0.037t + 50.1 can be used to predict the world record in the 400-meter dash t years after 1925, for what years will the world records be 48.1 seconds or less? thank you \n" ); document.write( "
Algebra.Com's Answer #175743 by nyc_function(2741)\"\" \"About 
You can put this solution on YOUR website!
From your question, I understand that R = 48.1 and we must solve for t.\r
\n" ); document.write( "\n" ); document.write( "I assume this to be the case. You did not say what R stands for.\r
\n" ); document.write( "\n" ); document.write( "48.1 = -0.037t + 50.1 and solve for t. Can you finish now?\r
\n" ); document.write( "\n" ); document.write( "If not, write back. I hope this is what you are looking for.\r
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\n" ); document.write( "\n" ); document.write( "I read your question again and made some arragements.\r
\n" ); document.write( "\n" ); document.write( "We need to solve for t, which represents time IN YEARS.\r
\n" ); document.write( "\n" ); document.write( "48.1 = -0.037t + 50.1 \r
\n" ); document.write( "\n" ); document.write( "48.1 - 50.1 = -0.037t\r
\n" ); document.write( "\n" ); document.write( "-2 = -0.037t\r
\n" ); document.write( "\n" ); document.write( "We now divide both sides by -0.037 to find t.\r
\n" ); document.write( "\n" ); document.write( "-2/-0.037 = t\r
\n" ); document.write( "\n" ); document.write( "54.1 = t\r
\n" ); document.write( "\n" ); document.write( "Understand?\r
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