Math Help?
2017-09-24 9:46 pm
The ratio of Dina’s bathing suits to Yana’s bathing suits was 4:1. After Dina threw out 26 of her bathing suits, she had 2 less than Yana. How many bathing suits did Dina have at first?
回答 (2)
2017-09-24 10:10 pm
d = 4y
d - 26 = y - 2
Substitute for d = 4y
4y - 26 = y - 2
Subtract y from both sides
3y - 26 = -2
Add 26 to both sides
3y = 24
Divide both sides by 3
y = 8
Since
d = 4y
d = 4 * 8
d = 32
Dina had 32 bathing suits <–––––––
http://goo.gl/y49sTR
d - 26 = y - 2
Substitute for d = 4y
4y - 26 = y - 2
Subtract y from both sides
3y - 26 = -2
Add 26 to both sides
3y = 24
Divide both sides by 3
y = 8
Since
d = 4y
d = 4 * 8
d = 32
Dina had 32 bathing suits <–––––––
http://goo.gl/y49sTR
2017-09-24 9:55 pm
She didn't have 2 less; she had 2 FEWER.
收錄日期: 2021-05-01 21:51:21
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20170924134620AAHaIF2