document.write( "Question 1206551: Harold Johnson lives on a four-sided, 50,000-square-foot lot that is bounded on two sides by parallel streets. The city has assessed him $1,000 for curb repair, $2 for each foot of property bordering on these two streets. How far apart are the streets? \n" ); document.write( "
Algebra.Com's Answer #844099 by math_tutor2020(3817)\"\" \"About 
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\n" ); document.write( "h = distance between parallel streets = height of trapezoid
\n" ); document.write( "b1, b2 = parallel sides\r
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\n" ); document.write( "\n" ); document.write( "b1+b2 = total number of feet along curbside
\n" ); document.write( "2(b1+b2) = total cost = $1000
\n" ); document.write( "2(b1+b2) = 1000
\n" ); document.write( "b1+b2 = 1000/2
\n" ); document.write( "b1+b2 = 500\r
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\n" ); document.write( "\n" ); document.write( "area of trapezoid = 0.5*h*(b1+b2) = 50,000
\n" ); document.write( "0.5*h*(b1+b2) = 50,000
\n" ); document.write( "0.5*h*(500) = 50,000
\n" ); document.write( "250h = 50,000
\n" ); document.write( "h = 50000/250
\n" ); document.write( "h = 200\r
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\n" ); document.write( "\n" ); document.write( "Answer: 200 ft
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