Mathematics, 05.06.2020 21:02 rb3910

Herbert has three lawn-mowing jobs. One lawn is shaped like a trapezoid, one like a triangle, and one like a rectangle. The trapezoidal lawn has bases that are 90 feet and 126 feet and a height of 75 feet. The triangular lawn has a height of 80 feet and a base of 105 feet. The rectangular lawn has a length of 120 feet and width of 90 feet. If Herbert can cut a 160 ft × 70 ft lawn in 2 hours, how long will it take him to mow all three lawns?

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Herbert has three lawn-mowing jobs. One lawn is shaped like a trapezoid, one like a triangle, and o...