Amy finds that 6 drops of water is leaking out of a dripping tap per min.She uses a cup of capacity 250mL to collect the water droplets. She finds that the cup is about 3/4 full after 32min. Estimate the volume of each water droplet.
ANS:1
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math(F.1 estimation)
2007-02-08 2:14 am
回答 (2)
2007-02-08 2:18 am
✔ 最佳答案
let the volume of each water droplet is xthen since each min 6 drops
32min=192 drops
192x=3/4(250)
192x=3/4(250)187.5
x=0.9765625 ml
x=0.9765625 cm^3
2007-02-07 18:18:46 補充：
1毫升＝1立方厘米
2007-02-07 18:19:19 補充：
四捨五入後變成1 cm^3
2007-02-07 18:19:38 補充：
192x=3/4(250)=187.5
2007-02-08 2:24 am
each water droplet =
((250 X 3/4) / 32) / 6
=125 / 128
= 1ml (or 0.97656 ml)
rem.
1. 250 X 3/4 is to find out the capacity of water droplets after 32 min.
2. then each min. of total droplets is ans of 1. / 32
3. So each droplet is ans 2. / 6
((250 X 3/4) / 32) / 6
=125 / 128
= 1ml (or 0.97656 ml)
rem.
1. 250 X 3/4 is to find out the capacity of water droplets after 32 min.
2. then each min. of total droplets is ans of 1. / 32
3. So each droplet is ans 2. / 6
收錄日期: 2021-04-12 22:47:14
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