標題:

小五數學題

發問:

aa.jpg

 

此文章來自奇摩知識+如有不便請留言告知

單層巴士每輛可載53人,小巴每輛可載16人.現有乘客377人,用了單層巴士和小巴共12輛剛好把所有學生載走,並沒有空位剩餘下來,那麼用了小巴多少輛?

最佳解答:

小巴每輛只可載16人377^16=23.5625,377^53=7.113207545.... 單層巴士人數是:5-7,如果是6,有:318人,6輛小巴有:96,不是377(因為太多了),如果是5(巴士)53*5=265,16*7=112,112+256是377 5輛單層巴士,7輛小巴 :7輛小巴 請給我5點!

其他解答:

先把單層巴土定為中間數(即是5) 53x5=265 377-265=112 112÷16=7 所以 單層巴士是5輛,而小巴是7輛。|||||Let x and y be the amount of buses and minibuses respectively . x + y = 12.............(1) 53x + 16y = 377...........(2) From (1) , x = 12 - y.....(3) Subs (3) into the equation 53x + 16y = 377 , 53 ( 12 - y ) + 16 y = 377 636 - 53y + 16y = 377 636 - 37y = 377 37y = 259 y = 7..(4) Subs (4) into the equation x + y = 12 , x + 7 = 12 x = 5 Therefore , the amount of buses and minibuses respectively are 5 and 7 . buses : 5 minibuses : 7 too easy|||||Hope I can help you ! Let x and y be the amount of buses and minibuses respectively . x + y = 12.............(1) 53x + 16y = 377...........(2) From (1) , x = 12 - y.....(3) Subs (3) into the equation 53x + 16y = 377 , 53 ( 12 - y ) + 16 y = 377 636 - 53y + 16y = 377 636 - 37y = 377 37y = 259 y = 7..(4) Subs (4) into the equation x + y = 12 , x + 7 = 12 x = 5 Therefore , the amount of buses and minibuses respectively are 5 and 7 . buses : 5 minibuses : 7|||||7輛小巴 5輛巴士 小巴:112人 巴士:265人|||||巴士用了5輛 小巴用了7輛
arrow
arrow
    文章標籤
    巴土 片段 乘客 太多 小巴
    全站熱搜

    ohe09nz81r 發表在 痞客邦 留言(0) 人氣()

    E-mail轉寄