(a)830km是n km的20%
(b)$192是$p的75%
(c)132g是t g的88%
(d)562.5mL是k mL的150%
help maths唔該
2006-11-06 6:24 am
回答 (2)
2006-11-06 6:28 am
✔ 最佳答案
a. n * 20% = 830n = 4150
b. p * 75% = 192
p = 256
c. t * 88% = 132
t = 150
d. k * 150% = 562.5
k = 375
2006-11-05 22:30:23 補充：
補充一個中間的Step :a. n * 20% = 830n = 830 / 20%n = 830 / 0.2n = 4150其他題目都是一樣，只要在公式右邊除上那個百份比便可以了。
2006-11-06 6:32 am
a)n*20%=830
n=830/20%
n=830/.02
n=4150
b)p*75%=192
p=192/75%
p=192/0.75
p=256
c)t*88%=132
t=132/88%
t=132/0.88
t=150
d)k*150%=562.5
k=562.5/150%
k=562.5/1.5
k=375
n=830/20%
n=830/.02
n=4150
b)p*75%=192
p=192/75%
p=192/0.75
p=256
c)t*88%=132
t=132/88%
t=132/0.88
t=150
d)k*150%=562.5
k=562.5/150%
k=562.5/1.5
k=375
收錄日期: 2021-04-12 21:28:38
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061105000051KK06119