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Grade 8 McGraw Hill Glencoe - Answer Keys
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Power UpPerformance Task
Under Construction
Midtown plans to build a highway through the city. The proposed highway will intersect Oakdale Road and Elm Street. Oakdale Road runs east to west, and Elm Street runs north to south so the two streets are perpendicular. The city created a proposal for a construction company as shown below.
Write your answers on another piece of paper. Show all your work to receive full credit.
Draw a map that represents the proposed plan. Label the given information on the map. What is the measure of the angle that is between Elm Street and the proposed Brook Highway? Explain your answer.
Mr. Shaw currently drives the Elm Street and Oakdale Road route five days a week, to and from work. If he gets 25 miles to a gallon of gasoline, how many gallons will he save every week when the highway is completed? Round to the nearest tenth.
Walnut Street runs parallel to Oakdale Road and also intersects Brook Highway. The city requires the construction company to pay for a traffic signal if the intersection forms an angle of more 150°. Does the construction company pay for the signal? Explain your reasoning.
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