document.write( "Question 1151524: You're going to build a 3 foot by 7 foot garden. If you surround it with a 1 foot wide brick border how many square feet of brick do you need? \n" ); document.write( "

Algebra.Com's Answer #773295 by ikleyn(52787) $\"\"$ $\"About$

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document.write( "The outer dimensions of your construction are  1 + 3 + 1 = 5 ft  and  1 + 7 + 1 = 9 ft,\r\n" );
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document.write( "so the full area is  5*9 = 45 square feet.\r\n" );
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document.write( "To answer the question, subtract from it the area of the garden itself, and you will get \r\n" );
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document.write( "      45 - 3*7 = 45 - 21 = 24 square feet.    ANSWER\r\n" );
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