Mathematics - 14 November 2007

Thats it

2007-11-14 13:52:18 · 8 answers · asked by Cory J 2

What Percent of 50 is 10?

What is 80% of 20?

16% of 125 is what number?

20% of what number is 48?


How do you do these?
and how are you supposed to tell what your supposed to do >__>?

2007-11-14 13:47:50 · 6 answers · asked by ... 3

2007-11-14 13:40:49 · 3 answers · asked by Anonymous

2007-11-14 13:38:43 · 11 answers · asked by Anonymous

Ok..
1.A football team has won 38 games out of 70 played and still has 50 games to play.How many of these games must they win in order that the percentage of games won for the entire season is 60%?

2.An open box is constructed by starting with a rectangular sheet of metal 10cm by 14cm. Square peices are cut out of the corners and the resulting flaps are folded upward to make a box. If the box is 2 cm deep, find its volume.

3.A man divides a basket of apples among his four neighbors. The first neighbor got half the apples, the second neighbor got one-quarter of the apples,the third neighbor received one fifth of the apples, and the fourth neighbor got 6 apples. How many apples were in the basket?

4. Paul and rachel decided to create their own thermometer scales. On Paul's scale water freezes at 30DegreesP and boils at 130DegreesP. On Rachel's scale water freezes at 0DegreesR and boils at 150DegreesR. What temperature on Paul's scale corresponds to a temperature of 30DegreesR?

2007-11-14 13:28:30 · 6 answers · asked by James R 1

well, im currently learning about derivatives and everything dealing with derivatives... what is the process to find the eqn. of the tangent line given f(x).. please provide example

2007-11-14 13:26:49 · 6 answers · asked by PreTty in PiNk 2

I am taking Algebra 2

Write the simplest polynomial function with integral coefficients that has the given zeros?

1. 2, 1 - i

2007-11-14 13:18:46 · 7 answers · asked by Alice 1

A coat of area 5 has five patches on it each with an area of at least 2.5. Prove there is some pair of patches whose common (overlapping) area is at least 1.

2007-11-14 13:16:34 · 6 answers · asked by absird 5

i can obviously find the square route of something but how do i find the cube route?

2007-11-14 13:15:24 · 13 answers · asked by Anonymous

1 -2 3 2
2 -1 0 4
-3 4 0 -2
-1 1 1 5

2007-11-14 13:13:03 · 4 answers · asked by Sidney 1

Hi, I'm having trouble with my calculus... If someone can help me with either one of these problems, it would be very helpful.

a.) The cost of operating a bus between Moose Jaw and Saskatoon is 100+5x, where x is the number of passengers. If a ticket costs $20 there will be 10 passengers, while if a tickets costs $15, there will be 20 passengers. Assuming the demand function is linear, what is the Maximum profit?

b.) A lakefront runs east-west. A man in a rowboat is 5 miles due north of point A on the shor. He wishes to get to B, 5 miles due east of A, in the least time. He is able to row 3 miles per hour and walk 5 hour. What is the minimum time for the trip in minutes?

2007-11-14 13:09:15 · 2 answers · asked by Broken heart <3 1

arrange the terms in each polynomial in ascending powers of x 1)2x^3y+3xy-x^5

2007-11-14 13:06:35 · 2 answers · asked by Anonymous

sin x tan 3x = 0, [-180, 0]

2007-11-14 13:06:11 · 2 answers · asked by cutiepie1334 1

how do u solve C=2(pie)r;r

2007-11-14 13:05:17 · 6 answers · asked by james s 2

Adam rolled two standard, six sided dice once. what is the probability that he did not roll a prime number on either die? [common fraction]..remember that 36 things can happen!

2007-11-14 13:04:27 · 8 answers · asked by Anonymous

Okay so I don't understand this.

The problem is to solve the equation in the indicated domain

the equation is :
the cosine 3 theta times the cosine of twelve degrese minus the sine of 3 theta times the sine of twelve degrees equals one half. The domain is fomr -90 to 90 degreese and you have to find the general solution and use the general soltuion to find the critial points within the domain

I really don't understand this so if you could help me that would be great!

2007-11-14 13:02:49 · 1 answers · asked by xxinoeucitxx 1

Assume that the entire mass of an atom is
concentrated in its nucleus, a sphere of ra-
dius 1:5 £ 10¡5 pm. If the mass of an atom
is 4:22 £ 10¡22 g, what is its density? The
volume of a sphere is V =4/3pir3.
Answer in units of g=cm3.

2007-11-14 13:02:14 · 1 answers · asked by roxanne n 1

are they the same for both disk and shell method?

thanks

2007-11-14 13:00:19 · 1 answers · asked by Nickname 3

this relation is a total order on A. First prove that divides is a partial order on A, for some n .

2007-11-14 12:59:26 · 1 answers · asked by simonkf2002 1

2007-11-14 12:58:15 · 9 answers · asked by Ryan A 1

Sq. root of (3x^2 - 12x + 12)???

Anyone have a clue how to simplify it?

2007-11-14 12:57:24 · 3 answers · asked by Anonymous

The problem says "You like to drive to a special store to buy your favorite gourmet jelly beans for a low price of $1.30 a pound. However, your best friend points out that you are spending about $3 on gas every time you drive to that store and that you might as well buy your jelly beans at your local supermarket for $2.10 a pound. You decided to show him that you are getting enough jelly beans to make it worth the trip.

The first question (part A) asks me to let X represent the number of pounds of jelly beans and to write an equation to determine the total cost, C, if I buy them at the special store. I wrote:

C=1.30X+3

Then (part B) it asks me to write an equation to determine the total cost, C, if I buy the jelly beans at the local supermarket. I wrote:

C=2.10X

Those are both right

But this is where I get stuck….

It says “The two equations in part A and part B form a system of two linear equations. Solve this system using an algebraic approach.”

I don’t know how to do this!!

2007-11-14 12:52:52 · 2 answers · asked by Anonymous

2007-11-14 12:52:36 · 1 answers · asked by Anonymous

2007-11-14 12:46:32 · 2 answers · asked by shy one 2

2007-11-14 12:38:51 · 5 answers · asked by Anonymous

38% of what # is 28?
52 is what %of 78?
I only need answer I just have to check before teaching someone

2007-11-14 12:38:23 · 6 answers · asked by donthitmeah 2

Does anyone know the proof of this theorem:
If line l is parallel to line m, and m is parallel to line n, then l is parallel to n or l is equal to n.

I would LOVE a paragraph proof, but a column proof would also help. Thanks!

2007-11-14 12:24:00 · 1 answers · asked by harrypotteressence 3

2007-11-14 12:17:53 · 7 answers · asked by bigrac15 2

5x^5+10^2+2x

2007-11-14 12:13:35 · 1 answers · asked by Anonymous

2007-11-14 12:10:50 · 5 answers · asked by southern girl 1