A complete and practical solution book for the common school teacher (1899)
Fairchild, J[ohn] T[heodore] [from old catalog] · Crawfis College, Ohio, The author · leaf 172
point at the same time;A traveled southeast for 10 hr., and at the rate of 10 mi. per hr., andB traveled due south for the same time, going 6 mi. per hr : theyturned and traveled directly towards each other at the same ratesrespectively, till they met: how far did each man travel? Solution. (1) Let… … 158 FAIRCHILDS SOLUTION BOOK. (4) As the Z D=a right angle, and L C=45°, then CD=AD% (5) 2AD2=AC2 = 1002, whence AD=50V*2, and BD=50V2 —60. (6) In the right triangle ADB, AB = V (50y2)2 + (50y2—60)- = V13600 — 6000V 2=71.517261+ mi. (7) A and B together travel 16 miles per hour, and the time…
Arithmetic · Geometry
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