看图回答问题。
商务信函回复 Dear sir/madam:we thank you very much for your enqury of 24th August and happy to learn that you are interested in our Catalysts.I am sure you will receive a copy of our illustrated catalogue with samples of Catalyasts in a few days.All the models illustrated in your offer can be supplied from stock at competitive price,shown on the price list inside the catalogue.We sincerely desire to have the pleasure of receiving an order form you.Yours truly.
一辆普通自行车的售价是386元,相当于一辆普通摩托车售价的 (1)看作单位“1”的量是 摩托车的售价.(2)根据题意可得线段图:(3)设摩托车售价是x元,由此可得:215x=386.x=2895.答:摩托车售价是2895元.(4)386÷215=2895(元).答:摩托车售价是2895元.
唐明要买一辆自行车,价格是290元.他已储蓄了225元,每周打工可以挣40元.有三种选择,可以根据具体情况作决策: 第一种付款:290元;第二种付款:90+19×12=318(元);第三种付款:28×12=336(元).一年(按51周计算)大约能挣40×51=2040(元).①第一种付款最少.②第二或第三种选择可以立刻得到自行车.③唐明能挣够钱来.
一辆普通自行车的售价是386元,相当于一辆山地车售价的 (1)看作单位“1”的量是这辆山地车的售价;(2)根据题意可得线段图:(3)设这辆山地车车的售价是x元,由此可得:25x=38625x÷25=386÷25 x=965.答:这辆山地车车的售价是965元;(4)386÷25=96.