3solvetheproportion a 32 x 8 b 57 x x c x4 7 2 d

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Unformatted text preview: ctober 29, 2012 Examples: Ex. 1 ­ Determine if the ratios are equivalent. a) 6 and 2 b) 1 and 10 5 6 5 30 Ex. 2 ­ Determine if the ratios form a proportion. a) 15 and 35 b) 2 and 8 36 42 3.5 14 Ex. 3 ­ Solve the proportion. a) ­3 = 2 x 8 b) 5 = 7 x x c) x ­ 4 = 7 2 d) 3m ­ 2 = 3m + 3 2 3 Ex. 4 a) Dave's boat uses 5 gallons of gas in four hours. At this rate, how many gallons would he use in 10 hours? b) It takes Mary 2 1/2 hours to paint a room with wall space of 400 square feet. At this rate, how long will it take her to paint a room that has 720 square feet of space? c) On a road map, the scale is 5 in = 144...
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