document.write( "Question 830605: Write and solve an inequality. the difference of three fourth of a number and 6 is more than 10. what could te number be? \n" ); document.write( "
Algebra.Com's Answer #500719 by JulietG(1812)![]() ![]() You can put this solution on YOUR website! Let x be the unknown number. \n" ); document.write( "3/4x - 6 > 10 \n" ); document.write( "Add 6 to each side: \n" ); document.write( "3/4x > 16 \n" ); document.write( "Multiply each side by 4/3: \n" ); document.write( "x > 4/3 * 16 \n" ); document.write( "Do the multiplication: \n" ); document.write( "x > 64/3 \n" ); document.write( "Reduce \n" ); document.write( "x > 21 1/3 \n" ); document.write( ". \n" ); document.write( "Let's pick a number to make certain it's correct. How about 24? (24 is easily divisible by 3/4) \n" ); document.write( "3/4(24) - 6 > 10 \n" ); document.write( "18 - 6 > 10 \n" ); document.write( "That works. Let's try one that shouldn't work if the equation is correct. We'll use 20. \n" ); document.write( "3/4(20) - 6 > 10 \n" ); document.write( "15 - 6 > 10 \n" ); document.write( "9 > 10 \n" ); document.write( "Since 9 is NOT greater than 10, it does not work in the equation. We should have expected that 20 would not work given that our equation specified that x was greater than 21 1/3. \n" ); document.write( " |