Algebra Story Problems - Choose the equation which matches each story 1) Kayla pays her plumber $22 per hour to replace her drain pipe. She ends up paying him $99. Which equation can you use to find h, the number of hours the plumber worked? a) 22/h = 99 b) 22h = 99 c) 22 + 99 = h d) 22 - h = 99 2) Samantha was earning $6.35 per hour in her old job. She changed jobs, and got a raise, to $8.78 per hour. Which equation can you use to find r, the amount her hourly wage increased? a) r/6.35 = 8.78 b) 6.35r = 8.78 c) 8.78 + r = 6.35 d) 6.35 + r = 8.78 3) Steve Wiebe set a record high score on Donkey Kong in March of 2007. Then 3 months later, Billy Mitchell beat that record by 1,100 points. Mitchellʼs new record was 1,050,200 points. Which equation can you use to find w, Steve Wiebeʼs score? a) 3w = 1,100 b) 1,050,200 + w = 1,100 c) w - 1,100 = 1,050,200 d) w + 1,100 = 1,050,200 4) A machine full of M&Mʼs puts 25 M&Mʼs into each box. The machine filled 40 boxes before it ran out of M&Mʼs. Which equation can you use to find m, the number of M&Mʼs in the machine at the start? a) 40m = 25 b) m/25 = 40 c) 40/m = 25 d) 40 - m = 25
5) Hosea scored 21 points in a basketball game. Hosea scored 7 more points than Devin. Which equation can you use to find d, the number of points scored by Devin? a) d - 7 = 21 b) 7 + d = 21 c) 21/7 = d d) 7d = 21 6) Daniel has three times as many paper clips as Mackenzie. She is very jealous. Daniel has 168 paper clips. Which expression can you use to find m, the number of paper clips Mackenzie has? a) 3m = 168 b) m/3 = 168 c) m + 3 = 168 d) 168 - m = 3 7) Kelsey had 67 old copies of Tiger Beat. She traded in several of them at Bookman Used Bookstore. If she has 23 copies left, which expression can you use to find m, the number of magazines she traded in? a) 67 + m = 23 b) 23m = 67 c) 67 - m = 23 d) 67/m = 23 8) Travis reads 20 pages in his Spiderman comic books each hour. On Tuesday he read for 6 hours, and read ... well, a bunch of pages. Which expression can you use to find p, the number of pages he read Tuesday? a) p - 6 = 20 b) 20p = 6 c) p/20 = 6 d) p + 6 = 20