Keith had $4000 in his savings account last year. Tis year the savings become $8000
(A) If Keith takes out 20% of his savings from the account, find the percentage change in his savings now as compared to last year.
Percentages 1題
2009-12-15 2:15 am
回答 (3)
2009-12-15 6:17 am
✔ 最佳答案
The percentage change is{[8000(1-20%)-4000]/(4000)}(100%)
=(2400/4000)(100%)
=+60%
Answer:
The percentage change in his savings now as compared to last year is +60%
2009-12-15 9:20 pm
2009-12-15 2:49 am
Increase compared to last year.
Percentage increase:
8000x(1-20%)-4000
________________x100%
8000
2400
= ____x100%
8000
=30%
Percentage increase:
8000x(1-20%)-4000
________________x100%
8000
2400
= ____x100%
8000
=30%
參考: Me
收錄日期: 2021-04-19 20:49:50
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091214000051KK01155