1.What's the volume in cm3 of a container which holds 2.250l
2.if the top left cornor of a parallelogram is 115 degrees what angles is the top right and bottem right
3. if 200 people voted for their fave sport and 1/8 of people voted for criket and 4/8 voted for footie how many MORE people voted for football then cricket
4. the population of a town of 0.5million fell by 50000 what was the percentage of the fall in population
PLEASE HELP IM DESPERATE
2007-02-22
06:41:38
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8 answers
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asked by
Laura
6
in
Science & Mathematics
➔ Mathematics
THANKS SO MUCH TO EVERYONE WHO VOTED math just aint my subject lol
2007-02-22
07:02:00 ·
update #1
1 - 2250 cm3
2 - 65, 115
3 - 75 more people
4 - 10%
2007-02-22 06:47:24
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answer #1
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answered by Jack 2
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Regarding Nr. 2.:
the parallelogram has a total of 360 degrees. Each two opposite angles are identical in size. If the top lef corner is 115 degrees then the bottom right angle is also 115 degrees. Together this makes 230 degrees. 360 - 230 = 130 degrees. So you have 130 degrees left for both other angles, which are also identical, so each of them is 130 divided by 2 = 65 degrees. So the top right angle is 65 degrees.
2007-02-22 06:50:38
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answer #2
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answered by swallowbutterfly 1
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1. The volume in cm^3 for 2.25 litres.
N.B. there 1000 cm^3 in one litre.
therefore in your question there are 2.25 x 1000 = 2250 cm^3
2. 65 degrees - allied internal angles (180 degrees)
and 115 degrees - allied internal angles again.
3. 1/8 of 200 is 25
4/8 (1/2) of 200 is 100
therefore 100 - 25 = 75 MORE people voted for football than cricket.
4. 0.5 million = 500,000
therefore percentage loss is 50,000/500,000 x 100 = 10%
2007-02-22 09:19:58
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answer #3
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answered by lenpol7 7
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1) 1L = 1m3
so you have to convert 2.250 into m
so cuberoot(2.250m3) = 1.31 m
1.31m = 131cm
then (131cm) ^3 = 2248091cm3
thats the volume in cm3
2) top left is 115, top right is (180 - 115) = 65, bottom right is same as top left witch is 115. (try it out )
3)well, 4/8 - 1/8 = 3/8
so theres 3/8 ppl in differnece,
200 * 3/8 = 25*3 = 75 people
4)0.5 million = 500 thousand = 500 000,
so to calculate percentage,
50 000 / 500 000 *100
= 0.1 * 100
= 10%
2007-02-22 06:50:07
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answer #4
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answered by Curious G 2
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Question 1 = 2250 cm3
Question 2 = 65, 115
Question 3 = 75 more people
Question 4 = 10%
Hope I helped!! xxxxx
2007-02-22 06:49:57
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answer #5
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answered by tonnage 17 3
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1 1litre=1000cm3, so 2.250l*1000 =2250. it helps to think of cars. Q 1.0l car is 1000cc
2top left is same as bottom right ie115. other is 180-115=75
3. 4/8-1/8=3/8...3*200=600. 600/8=75
4 0.5mil=500000...50000/500000=5/50=1/10=10%
hope this helps
2007-02-22 09:35:19
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answer #6
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answered by CIARAN D 2
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1)dont know...
2) 65 and 115 degrees
3) 75
4)10%
2007-02-22 06:52:29
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answer #7
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answered by cheeky_little_monkey! 2
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1. 1 m3 = 1000 l
1 cm3 = 1l
=> the container holds ......2.250 cm3
2007-02-22 07:09:18
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answer #8
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answered by Flo D 1
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