Science & Mathematics - 19 January 2007

On an aeroplane, 16% of the seats are allocated for business class passengers. The remaining seats are allocated for first class and economy passengers. On a particular trip, the business class section was 3/4 full with 36 passengers. What is the total numer of seats on the plane?

2007-01-19 15:55:53 · 12 answers · asked by Anonymous in Mathematics

2007-01-19 15:53:50 · 7 answers · asked by Maria; 2 in Physics

2007-01-19 15:52:49 · 13 answers · asked by 6th Finger 2 in Zoology

2007-01-19 15:51:58 · 11 answers · asked by Anonymous in Mathematics

2007-01-19 15:51:36 · 5 answers · asked by Anonymous in Zoology

i'm really bad at math and especially geometry... any help appreciated, thanks:

The length of a rectangle is 5 centimeters (cm) less than 4 times the width. If the perimeter is 140 cm, find the dimensions of the rectangle.

2007-01-19 15:51:18 · 14 answers · asked by Antonello D 1 in Mathematics

...With the below equation taken into consideration:

ZnS (s) + 2 HCl (aq) → ZnCl2 (aq) + H2S (l)

Help is greatly appreciated!

2007-01-19 15:48:47 · 6 answers · asked by Random G 3 in Chemistry

2007-01-19 15:48:46 · 3 answers · asked by monetspicasso 3 in Weather

a.3
b.4
c.5
d.6

2007-01-19 15:48:06 · 11 answers · asked by JeN 1 in Mathematics

In a group of five girls: Jane is taller than Sarah; Sally is the shortest in the group; Juana is taller than Sarah; and Sarah is taller than Sally. It can be said that:

A.Sarah is the 2nd tallest
B.Sarah is the 3rd tallest
C.Sarah is the 4rth tallest
D.It is impossible to tell

2007-01-19 15:46:55 · 16 answers · asked by JeN 1 in Mathematics

I am not sure of the answer. This is for my Aviation Maintenance class homework. Any Av. Maint mechanics out there who may help? Thanks!

2007-01-19 15:45:20 · 1 answers · asked by jchsng 1 in Engineering

m 89 on one side and nothing on the other. no score line for breaking in half?is whitish in color.. any ideas on what this may be?

2007-01-19 15:42:56 · 6 answers · asked by babysquirrell_012000 1 in Medicine

I purchased my 12 year old son a Meade DS-2130AT goto telescope for Christmas.

We saw the moon with the craters & it was nice but I thought we'd be able to see it bigger with a 130mm 5" aperture. I put on the smaller eyepiece & it was larger but blurry... so therefore the smaller image is all we'll expect to see?

Also, we can't seem to find anything but the moon.

The goto isn't working right. It finds 2 stars & says it's ready. You enter Saturn, etc & it goes to something but we can't see anything. One time it said "check mount" and I don't really know what that means. We were suppose to tighten somthing but I can't figure out what.

The star charts are SO confusing and neither of us can figure anything out. I've been to a variety of websites & the telescope came with a starrynite software but it really doesn't show you much and doesn't come with a tutorial.

I wish there were classes on these things as I feel we are totally at a loss as to what to do.

Any advice??

2007-01-19 15:41:56 · 4 answers · asked by Genie♥Angel 5 in Astronomy & Space

Why is it so easy to roll a ball or a wheel and yet so much more difficult to slide a block along the floor? What is the difference?

2007-01-19 15:41:36 · 11 answers · asked by califrniateach 4 in Physics

freind smokes pot with daughter is it hip or is it weird.

2007-01-19 15:37:51 · 13 answers · asked by Anonymous in Medicine

2007-01-19 15:37:21 · 8 answers · asked by jp 1 in Engineering

2007-01-19 15:35:22 · 2 answers · asked by sbs89 2 in Chemistry

2007-01-19 15:34:55 · 14 answers · asked by vikramgoodboy 1 in Physics

what continets, countries, and hemispheres

2007-01-19 15:34:53 · 7 answers · asked by scuba diver 1 in Geography

2007-01-19 15:34:27 · 3 answers · asked by nhicky 1 in Mathematics

2007-01-19 15:33:45 · 17 answers · asked by Anonymous in Mathematics

2007-01-19 15:32:31 · 4 answers · asked by Anonymous in Biology

would it be an odd or an even number when finished?

2007-01-19 15:32:18 · 18 answers · asked by JeN 1 in Mathematics

That it takes the ESA to a project of launching in 2009 with the objective to give necessary and detailed information on, approximately, a billion of shining objects of the sky, that caoticamente confuse stars or not, galaxies if finding or nebulas. GAIA will be a satellite of three tons of weight that will be placed the 1,5 kilometers of the Land and will take two identical telescopes of 1,7 meters of diameter. GAIA will have to operate during five years and its results, in terms of mapping of the object content of our Galaxy, will have to be, really, impressive for the great astronomical mico.

2007-01-19 15:30:56 · 3 answers · asked by britotarcisio 6 in Astronomy & Space

will it flood over everything?

2007-01-19 15:29:46 · 9 answers · asked by Anonymous in Earth Sciences & Geology

Is limestone valuable, very usable, or expensive?

2007-01-19 15:29:07 · 12 answers · asked by Anonymous in Earth Sciences & Geology

2007-01-19 15:27:03 · 17 answers · asked by king_art_thegreat 2 in Weather

None of that humor stuff, I really want to know.

2007-01-19 15:26:53 · 8 answers · asked by Anonymous in Earth Sciences & Geology

Explain how you got the answer.
--the formula of acetic acid and blah blah blah.
Yep, thanks.

2007-01-19 15:25:54 · 5 answers · asked by Anonymous in Chemistry

2007-01-19 15:22:55 · 7 answers · asked by Mike 4 in Astronomy & Space