document.write( "Question 69036: r=2 s=5 t=.5 \r
\n" );
document.write( "\n" );
document.write( "Write the following algebraic expression.
\n" );
document.write( "Then evaluate the expression for the values given above.
\n" );
document.write( "
\n" );
document.write( " t times the sum of four times s and r \r
\n" );
document.write( "\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #49127 by bucky(2189)![]() ![]() ![]() You can put this solution on YOUR website! Four times s is 4s.\r \n" ); document.write( "\n" ); document.write( "Therefore, the sum of 4 times s and r is (4s + r)\r \n" ); document.write( "\n" ); document.write( "The parentheses are used to make it clear that you are dealing with the sum. You are asked to multiply the sum by t.\r \n" ); document.write( "\n" ); document.write( "t times this sum is t*(4s+r) \r \n" ); document.write( "\n" ); document.write( "This is the algebraic expression you were asked to find.\r \n" ); document.write( "\n" ); document.write( "Evaluate the expression by substituting 2 for r, 5 for s, and 0.5 for t to get:\r \n" ); document.write( "\n" ); document.write( " 0.5 * (4*5 + 2)\r \n" ); document.write( "\n" ); document.write( "Inside the parentheses first do the multiplication 4 times 5. Then add 2 to that answer. 4*5 is 20 and adding 2 results in 22. Substitute 22 into the expression in place of (4*5 + 2) to get:\r \n" ); document.write( "\n" ); document.write( " 0.5 * 22\r \n" ); document.write( "\n" ); document.write( "And 0.5 * 22 = 11\r \n" ); document.write( "\n" ); document.write( "The answer to the evaluation for the given values of r, s, and t is 11 \n" ); document.write( " |