sat数学题（英语） Tom and Alison are both salespeople,Tom's weekly compe_英语解答

sat数学题（英语）
Tom and Alison are both salespeople,Tom's weekly compensation consists of $300 plus 20 percent of his sales.Alson's weekly compensation consists of $200 plus 25 percent of her sales.if they both bad the same amount of slaes and the same compensaton for a particular week what was that compensation in dollars.(Disregard the dollar sign when gridding your answer)

人气：428 ℃　时间：2020-06-13 07:03:26

解答

Let the sales be a dollars and compensation be b dollarsTom:300 + a*20% = bAlison:200 + a*25% = b300 + 0.2a = 200 + 0.25a,0.05a = 100,a = 2000b = 300+2000*20% = 300 + 400 = 700