document.write( "Question 1206700: I need to know how to solve and explain the decimal problems.\r
\n" );
document.write( "\n" );
document.write( "\"Find the unknown number.\"\r
\n" );
document.write( "\n" );
document.write( "1). _____ x 0.05 = 0.04\r
\n" );
document.write( "\n" );
document.write( "2). 0.05 x ______ = 0.02\r
\n" );
document.write( "\n" );
document.write( "3). _______ x 0.08 = 0.04 \n" );
document.write( "
Algebra.Com's Answer #844301 by math_tutor2020(3817)![]() ![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "I'll do problem 1 to get you started.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "something * 0.05 = 0.04 \n" ); document.write( "To isolate the \"something\", we need to undo what is happening to it. \n" ); document.write( "We need to undo the multiplication.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "To undo multiplication, we divide both sides by 0.05 \n" ); document.write( "something = 0.04/0.05 = 4/5 = 0.8\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "As a check, \n" ); document.write( "0.8 * 0.05 = 0.04 \n" ); document.write( "0.04 = 0.04 \n" ); document.write( "which confirms we have the correct value to fill in the blank.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Problems 2 and 3 will follow a similar pathway. \n" ); document.write( " \n" ); document.write( " |