Mathematics - 23 July 2007

For all sets A, B, and C, Can anyone prove with a counterexample that IF A is a subset of B and B subset of C then A is a subset of C.

2007-07-23 14:51:39 · 4 answers · asked by Anonymous

i have a 2 small squares that are 5.2cm and 6cm i need to make them fit in the the big square(7.8cm).
they cannot overlap and can be in any shape but u have to use all the shapes

2007-07-23 14:23:29 · 1 answers · asked by stat 2

2007-07-23 14:18:47 · 3 answers · asked by jennifer f 1

2007-07-23 14:17:49 · 6 answers · asked by jennifer f 1

I need some help with the following problems:

1. the base of a triangle is 10m greater than the height. the area is 12m squared. find the height and the base.

2. the base of a triangle is 16cm greater than the height. the area is 40cm squared. find the height and the base

3. the height of a triangle is 5cm less than the base. the area is 42cm squared. find the height and the base

4. the base of a triangle is 9cm less than the height. the area is 35cm squared. find the height and base

5. if the sides a square are lengthened by 4m, the area of a square becomes 100m squared . find the length of a side of the original square.

if not the solution to the problem i would prefer how to set it up to solve it, then i can finish the rest.

thanks!

2007-07-23 14:12:59 · 4 answers · asked by Anonymous

Hillside High school has 504 students. One-quarter of the students are sophomores, and 3/7 of the sophomores are boys. If one-third of the sophomores girls take French, how many sophomore girls do not take French

2007-07-23 14:01:59 · 9 answers · asked by Anonymous

When the Apex Pet Store first opened, the ratio of cats to dogs was 4 to 5. Since then, the number of cats has doubled, while the number of dogs has increased by 12. If the ratio of dogs to cats is now 1 to 1, how many cats did the store have when it opened?

2007-07-23 13:57:24 · 6 answers · asked by wu_4533 2

There are two cars going toward each other and starting 60 miles away from each other. One car's speed is 20m/h and the other one is 40m/h. How long does it take for both cars meet each other ?
Please help me and I am going to give the correct answer a 10 points

2007-07-23 13:54:37 · 15 answers · asked by missybitsy 1

2007-07-23 13:48:52 · 4 answers · asked by Anonymous

I have 1813 points right now and if I were to ask the maximum amount of questions--15, how many days would it take for me to have "0" points. This is a simple math question. And yes, I can figure it out for myself, I just don't feel like it. Besides, someone could use the 10 points.

2007-07-23 13:39:11 · 11 answers · asked by BookLady 3

23j-33Y_=32jbaw111+{2R*02-H2o carbon} hgh mph 112P
air pressure 65J- y=ma -22.23. how fast does the car have to be going if it was turned in to gas. but no interfernce of joules and r=99+232Pressure./time which is not solved . convert 20 m to kilo and then convert to (K)-(u)
V=d/t v=YF

2007-07-23 13:37:31 · 4 answers · asked by hey2cesar 1

Joan originally had twice as many books as Emily. After she gave Emily 5 books, Joan still had 10 more than Emily. How many books did Joan have originally?

2007-07-23 13:27:05 · 7 answers · asked by wu_4533 2

Im havn trouble with this its for my Stats class...

Suppose that 3 cards are drawn from a deck of cards, each card was replaced and the deck reshuffled. What is the probability of getting one of more hearts?

2007-07-23 13:15:01 · 4 answers · asked by RubiaBonita 2

express this statement in a diffrent way
1/2=5/10

express 2:5=4:10 as a fraction

solve x in the following problem
3/5=x/25
4:10=x:40

in this problem if y is larger tahn 8 what statement can made about the size of x
y/4=x/3

2007-07-23 13:13:47 · 3 answers · asked by deebeals 1

If there are 8 furlongs in a mile, how many miles are there in 30 furlongs?

2007-07-23 12:57:49 · 5 answers · asked by Amber B 1

1. After 2/3 of the marbles are removed from a jar, 5 more than 1/6 of the marbles remain.




2. In a jar, there are 4 more than twice as many blue marbles as red marbles.




thats all, thanks to all who answered!!!

2007-07-23 12:45:31 · 8 answers · asked by Ann 3

2007-07-23 12:40:02 · 8 answers · asked by Jacesmom 2

2007-07-23 12:35:35 · 6 answers · asked by sim sim 6

A solution of the equation 4x=10-cy is (5, -2). What is the value of c?

2007-07-23 12:24:05 · 9 answers · asked by Anonymous

how do yu write this ordered pait in mx+b form when the b is constant

(4,-1) (0,3)
(-2,1) (0,1)

2007-07-23 11:47:12 · 3 answers · asked by percy m 1

There are 28 total dominoes, 4 players with partners sitting across the table from each other. Each player draws 7 dominoes. If player A draws the following 7 dominoes:
(4-4, 4-6, 4-1, 6-6, 6-5, 1-1, 0-0) ( Normally A two mark hand where player A calls "fours's" as "trumps"

Note : There are 4 "four's" left.

What is the probability that an opposing player will draw the (4-5) AND at least 2 of the remaining 3 four's (4-0) (4-2) (4-3)

2007-07-23 11:44:47 · 3 answers · asked by Jeremy 2

2007-07-23 11:07:05 · 22 answers · asked by del 4

The average age of a group of people is 63
The standard deviation is 0.05.
Is there enough information given to support this claim?
If 'yes', then what is the 'T' value?

Any help would be great, thanks!!

2007-07-23 11:05:08 · 3 answers · asked by wow i need help 1

What is teh monthly mortgage payment for a mortgage of $230000 at 5.5% per annum, amortized over 20 years.

the equation says...
Monthly mortgage = units of thousands x rate per thousand

so i tried to put these together and i came out with

monthly mortgage = (230000/1000) x rate per thousand

how do i find the rate per thousand??

2007-07-23 11:00:33 · 4 answers · asked by Genius star ;) 2

what is the probability of selecting 2 red socks one after the other out of 20 ?

2007-07-23 10:57:59 · 5 answers · asked by kenneth 1

please anwser it for me its fraction

2007-07-23 10:46:24 · 6 answers · asked by kenneth 1

Can someone please explain how prove this statement?

sum (1 to infinity) of 1/(n^2) is less than 2

Why is it less than 2? Please give a detailed explaination if you can.

2007-07-23 10:42:08 · 9 answers · asked by Mark 2

It's late and i can't get my head round it, i need to find the time it takes for a wheel to complete 1 full revolution for any given speed.

Thanks in advance?

2007-07-23 10:35:35 · 10 answers · asked by Anonymous

A man runs a race that requires a roundtrip back to the starting line once he reaches the 'half-way' mark. He averages 3MPH to the half-way mark. How fast does he have to run on the way back to average 6MPH for the entire trip?

Hint: It's not 9MPH.

2007-07-23 10:23:13 · 3 answers · asked by Nep 6

Describe why 3/5 and 27/45 are equivalent fractions.

2007-07-23 10:18:41 · 9 answers · asked by Anonymous