CALCULUS
posted by Stumped Student .
At 3:00 PM a man 144 cm tall casts a shadow 146 cm long. At the same time, a tall building nearby casts a shadow 171 m long. How tall is the building?
Give your answer in meters. (You may need the fact that 100 cm = 1 m.)

Cant you use a ratio here?
h1/s1=h2/s2 solve for h2 
173.375 meters

118.75

a rectangular lot is bounded at the back by a river . No fence is needed along the river and three is to be a 24ft. opening in front. if the fence along the front costs $1.50 per ft.,along the sides $1 per ft. find the dimensions of the largest lot which can be thus fenced in for $300

146/144=1.01388888889
171/1.01388888889=168.657534246
ans168.657534246
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