document.write( "Question 686039: The largest swimming pool in the world is in Casablanca. With a perimeter of 1110 meters this rectangular shaped pool is 30 meters longer than 6 times its width. How many meters wide is it \n" ); document.write( "
Algebra.Com's Answer #424691 by sp75(12)\"\" \"About 
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1: Draw a diagram (a simple rectangle will do)
\n" ); document.write( "2: Identify what you want to know and give it a name (we want to find width, so let's make its name w)
\n" ); document.write( "3: Ask yourself, \"What information do I have?\"
\n" ); document.write( "---> You know that the Perimeter is 1110. Mathematically, you also know that the perimeter is just the sum of all the sides of a rectangle or square. Therefore, the equation for the perimeter (we will call it P) is P = L + L + w + w
\n" ); document.write( "(****L is equal to the length of the pool****)\r
\n" ); document.write( "\n" ); document.write( "So, if P = 1110 and P = L + L + w + w then 1110 = L + L + w + w
\n" ); document.write( "Remember that because we will need it for later.\r
\n" ); document.write( "\n" ); document.write( "---> You also know that the pool is 30 meters longer than 6*w
\n" ); document.write( "\"Longer\" is a keyword telling you that the you will need to add 30 to 6*x.
\n" ); document.write( "This whole phrase is just another way of saying that the length of the pool is 30 meters longer than six times the width. \r
\n" ); document.write( "\n" ); document.write( "So, now we know that L = 30 + (6*w).\r
\n" ); document.write( "\n" ); document.write( "Note: Cool. Now we know L, we know P and we have an equation.
\n" ); document.write( "Remember P = L + L + w + w?\r
\n" ); document.write( "\n" ); document.write( "We have one equation and one unknown (which, in this case, is a recipe for success). \r
\n" ); document.write( "\n" ); document.write( "4: Let's solve for w:\r
\n" ); document.write( "\n" ); document.write( "1110 = (30 + (6*w) ) + (30 + (6*w)) + w + w\r
\n" ); document.write( "\n" ); document.write( "Well, since we don't have any numbers outside of the parenthesis to distribute and the numbers inside of the parenthesis are in their simplest for we can re- write this as \r
\n" ); document.write( "\n" ); document.write( "1110 = 30 + 6w +30 + 6w + w + w
\n" ); document.write( "Combine terms: 1110 = 60 + 14w
\n" ); document.write( "Subtract 60 from both sides: 1050 = 14w
\n" ); document.write( "Divide both sides by 14: 75 meters = w
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