!. a farmer found that his cow and goat would eat all the grass of a field in 45 days, his cow and goose in 60 days and goat and goose 90 days. If the cow goat and goose are turned on the field together how long will it take for them to eat it ll?
Two cyclists were going to race. it takes mary 6 minutes to ride around the track 1ce it takea mike 4 mins. how many minutes will pass between each of the times mike passes mary?
Bill rasheem and juan own a body shop juan owns 5/8 body shop and rasheem owns 2ce as much as bill, what fraction of the shop does bill own?
2007-09-26 09:21:53 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
q1
cow's eating rate=c
goat's=t
goose's=s
field's amount of grass=f
f/(c+t)=45
c+t=f/45
accordingly
c+s=f/60
t+s=f/90
so
c+s+t=(f/45+f/60+f/90)/2
=(4f+3f+2f)/360
=9f/360
=f/40
40 days
q2
12 minutes
smallest common multiple?
q3
1/(1+2) * (1- 5/8)
=1/3*3/8
=1/8
or 12.5% shares
2007-09-27 03:19:04 · answer #1 · answered by Mugen is Strong 7 · 0⤊ 0⤋
these r sixth grade wow!
answers:
1) 30 days
2)12 minutes
3)1/8
2007-09-26 09:37:46 · answer #2 · answered by fullmetal heart 1 · 0⤊ 0⤋
im in jr high and i have no idea what your talkin about!!! lol..but yeah your on your own..thats too much fo me to think about.
2007-09-26 09:31:02 · answer #3 · answered by Anonymous · 0⤊ 2⤋
wow this is hardcore stufff....man
2007-09-26 09:31:00 · answer #4 · answered by jEssicA 2 · 0⤊ 1⤋