2006-09-05 15:14:24 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
It goes something like this. The British and the French are starting a tunnel under the English channel, called the Chunnel.
The British work at .63kilometers per hour
the French at .47 km per hr.
They dug a total of 37.9 kilometers.
The British started 2.5 months early
I need to know how far each dug, and a way to solve the problem and also
if the French started Feb. 28 1988 when did they finish?(remember the british started earlier) and how you solved that.
2006-09-05 15:20:07 · update #1
sorry i forgot to put the problem up.
Now GO!
2006-09-05 15:21:11 · update #2
yeah, angel4ever i get it but I need someone to show me how to group the numbers. I am good at math but just don't know how to put this problem together
2006-09-05 15:27:46 · update #3
sorry my info was a little off it was km per MONTH. oops
2006-09-06 12:08:19 · update #4
(length dug) = (digging speed)(time elapsed- handicap)
==British side==
2.5 mo = 2.5 mo*(30 days avg./mo)*(8 h/day) = 600 h
(British length) = (.63 km/h)(t- 600)
==French side==
(French length) = (.47 km/h)(t)
==Overall work==
(British)+ (French) = 37.9 km
___ (.63)(t- 600)+ (.47)(t) = 37.9
___ 1.10t- 378 = 37.9
___ 1.10t = 415.9
___ t = 415.9/1.10 = 378.1 h
Plugging t back into the (British length) and (French length), we get
___ (French length) = (.47)(378.1) = 177.7 km
___ (British length) = (.63)(378.1- 600) = -139.8 km
I guess something's wrong with your data (probably the handicap of 2.5 months--that's a lot of time). Or else, it seems that the British were undoing the hard work of the French... (are the British supposed to bury the tunnel?! *lol*)
2006-09-05 16:43:24 · answer #1 · answered by Illusional Self 6 · 0⤊ 0⤋
well, how u solve it is use the order of operations. parenthesis, exponets, multiplication, division, addition, and subtraction. if theres no parenthesis go 2 exponets. if theres no exponets go 2 multiplication. u get the pic right? so basically go down the row and watever pops up. EXAMPLE: n-3(5+4)-2. u would do the problem in the parenthesis 1st, then u would just start 4rm the beginning and when thers a number in front of parenthesis u multiply it by the number u get in the parenthesis.
2006-09-05 15:24:12 · answer #2 · answered by wildcat 4 lyfe! 2 · 0⤊ 0⤋
is the 2.5 months means he is working 24 hours a day? we need to know it so that we can compute his output then subtract the no of kilometers from the other man
2006-09-05 15:35:07 · answer #3 · answered by ettezzil 5 · 0⤊ 0⤋
You solve your problem by reading the textbook and following the examples.
2006-09-05 15:17:01 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Well you did not put the problem,,,,,,,just remember what you do to one side of the equation you do to the other.
2006-09-05 15:19:54 · answer #5 · answered by Gabe 6 · 0⤊ 0⤋
Hey einstein, it helps if you tell us what the problem is
2006-09-05 15:16:50 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Well, what's the problem?
2006-09-05 15:15:55 · answer #7 · answered by Theresa T 2 · 0⤊ 0⤋
you have to post it for people to see it so we can answer it
2006-09-05 15:16:33 · answer #8 · answered by Gretchen B 3 · 0⤊ 0⤋
okay so what is the problem?
2006-09-05 15:16:25 · answer #9 · answered by herekittykitty_07 2 · 0⤊ 0⤋
lets hear it@!
2006-09-05 15:16:24 · answer #10 · answered by psxfff123 3 · 0⤊ 0⤋