唔該大家幫下手計喱幾題數..我想要每個部驟清楚咁打出黎..唔好剩係答案..唔該
1.)A sum of $16000 is divided between Wilson and Sherman in the ratio of 4:6. How much money does Wilson get?
2.)In a pocket,there are some 50/C (唔識打個符號.意解好似係[仙])coins and $2 coins in the ratio of 10:7.If there are 21 $2 coins,find the total value of all coins in the pocket.
3.)The following table lists the ratio of the ingredients of two brands of green tea drinks.
Green tea : Honey
----------------------------------------------------------------
Brand A 19:1
--------------------------------------------------------------
Brand B 9:1
---------------------------------------------------------------
3A.)In 500 mL of brand A green tea drink,what is the volume of green tea?
3B.)In 300 mL of brand B green tea drink,what is the volume of honey?
3C.)If 500 mL of brand A tea is mixed with 300mL of brand B tea,what is the ratoi of the green tea to the honey?
4.)Kathy works in company A. She works 8 hours a day,6 days a week with weekly wages of $2160.Fanny works in company B. She works 9 hours a day,5 days a week with weekly wages of $2070.
4a.) Find the hourly wage of kathy in $/h.
4b.) Find the hourly wage of Fanny in $/h.
4c.) Who earns a higher hourly wage?
4d.)How many days should Fanny at least work to earn $5060?
5.)Henry walked home from school in 30 minutes at an average speed of 60 m/min.If he walked at a speed of 100 m/min in the initial 1000m,what was his walking speed for the remaining journey?
中一數學ｒａｔｉｏ英文文字題５條＊１５點＊
2008-03-23 9:02 pm
回答 (2)
2008-03-23 11:35 pm
✔ 最佳答案
1)let Wilson has 4x
Sherman has 6x
so
4x 6x=16000
10x=16000
x=1600
Wilson has 4*1600=$6400
Sherman has 6*1600=$9600
2)
50仙=$0.5
let there are 10y of 0.5coin
7x of 2coin
7x=21
x=3
there are
21*2 3*10*0.5=$ 57
3)
3A)
let the volume of honey is x ml
x 19x=500
x=25
the volume of green tea is 25*19=475ml
3B)
let the volume of honey is a ml
9a a=300
a=30
the volume of honey is 30ml
3C)
in brand A tea there are green tea 475ml,honey25ml (500ml)
in brand B tea there are green tea 270ml,honey30ml (300ml)
if you mix Brand A and Brand B tea
there are green tea745ml,honey55ml
the ratio of green tea to the honey is 149:11
4)
4A)
Kathy works 6*8=48hours
so
she has 2160/48 = 45$/hour
4B)
Fanny works 9*5=45hours
so
she has 2070/45 = 46$/hour
4C)
fanny earns a higher hourly wage
4D)
fanny earns 46*9=414 a day
if she need to earn 5060
she have to work:
5060/414
=12.2222222222222222......
so she have to work13days
5)
the way from home and school long 30*60=1800m
in the first 1000m
he used 1000/100=10min
so
the remaining journey longs 1800-1000=800m
he used 30-10=20min
his speed is 800/20=40m/min
2008-03-23 11:26 pm
1.
4 4
___ (16000) = ___(16000) =$6400
4+6 10
2. 因為2蚊佔全部的 7/10+7 = 7/17
所以2蚊數量=5/17*all of coins *=乘 /=分線
all of coins=21除7/17
=21*17/7
=51個
3.唔知你講咩-_-"sorry 有中文就幫你計
4a.1日人工=2160/6=$360/day
1個鐘人工=360/8=$40/h
4b.1日人工=2070/5=414$/day
1個鐘人工=414/9=46$/h
4c.Fanny [因為 46>40(可以唔寫( ]
4d.5060/414=12.2222222222222222222222222222222日
姐係要13日
5.唔知你講咩...
第3同第5題你補充番
2008-03-23 15:32:05 補充：
1.4/6+4*16000
=4/10*16000
=6400
2008-03-23 15:32:07 補充：
1.4/6+4*16000
=4/10*16000
=6400
4 4
___ (16000) = ___(16000) =$6400
4+6 10
2. 因為2蚊佔全部的 7/10+7 = 7/17
所以2蚊數量=5/17*all of coins *=乘 /=分線
all of coins=21除7/17
=21*17/7
=51個
3.唔知你講咩-_-"sorry 有中文就幫你計
4a.1日人工=2160/6=$360/day
1個鐘人工=360/8=$40/h
4b.1日人工=2070/5=414$/day
1個鐘人工=414/9=46$/h
4c.Fanny [因為 46>40(可以唔寫( ]
4d.5060/414=12.2222222222222222222222222222222日
姐係要13日
5.唔知你講咩...
第3同第5題你補充番
2008-03-23 15:32:05 補充：
1.4/6+4*16000
=4/10*16000
=6400
2008-03-23 15:32:07 補充：
1.4/6+4*16000
=4/10*16000
=6400
收錄日期: 2021-04-23 22:47:51
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080323000051KK01079