Mathematics - 6 September 2007

(L1with equation x-2y=10) and (L2 with equation 2X+Y=2)
Please show work - this is really hard!

2007-09-06 16:27:45 · 9 answers · asked by texan3715 1

2007-09-06 16:19:48 · 4 answers · asked by mathguy 2

A customers charge account shows a balance of $1,242.42 on August 1. A purchase of $49.95 was made on August 7. A payment of $350 was made on August 10. A purchase of $122.50 was made on August 21. An annual rate of 18.5% is applied to the account.

A) What is the average daily balance?
a. $1,967.78
b. $2,076.78
c. $1,067.76
d. $1,077.78

B) What is the finance charge on this account?
a. $18.50
b. $16.61
c. $19.40
d. $17.30

Thank you so much for your help. Like I mentioned in my other similiar question, my husband is our household math whiz....... but unfortunately he is serving in Iraq. Any and all help will be greatly appreciated.

Please explain your answer if you can.

TIA

2007-09-06 16:14:34 · 1 answers · asked by Anonymous

2007-09-06 16:13:31 · 5 answers · asked by texan3715 1

2007-09-06 16:08:17 · 4 answers · asked by Riaz J 1

Use the daily balance method.

A customer's charge account shows a balance of $390 on January 1. A payment of $100 was made on January 16. Purchases of $190 were made on January 23. An annual rate of 19.5% is applied to the account.

A) What is the average daily balance?
a. $393.55
b. $423.35
c. $386.45
d. $742.25

B) What is the finance charges on this account?
a. $7.31
b. $8.61
c. $6.39
d. $4.31

Thank you so much for your help. My husband, who is currently serving in Iraq, is the household mathwiz. Please explain, if you can, how you got your answer so that I may explain it to my son.

TIA

2007-09-06 16:06:43 · 5 answers · asked by Anonymous

2007-09-06 16:04:53 · 15 answers · asked by animalhouser07 2

Okay I really need some help with my Calculus homework I don't get any of these problems:

1) lim x->0 tan^2x / x

2) lim x-> pi x sec x

3) lim x-> pi/4 1-tanx / sinx-cosx

4) lim x-> 0 cosx-1 / 2x^2

5) lim x->0 sinx / cube rt. of x

I would really appreciate your help on any of these problems, please show steps so I understand what you are doing.

2007-09-06 16:01:45 · 2 answers · asked by gigi_victory 3

I need this a simplifyed as you can please!

10t+4(1-3t)

2007-09-06 15:58:01 · 7 answers · asked by luckeynat3 1

You travel 60 kilometers in 1.5 hours. What is your average speed?

2007-09-06 15:50:25 · 9 answers · asked by Anonymous

PLEASE EXPLAIN?...........THANKYOU SO MUCH!!!!!!!FOR ALL YOUR HELP!!!

2007-09-06 15:48:08 · 8 answers · asked by Kim 1

How do you graph it? like what are the coordinates. cuz all i see is 0 for both.

2007-09-06 15:46:46 · 12 answers · asked by Anonymous

(³√2x+1)+8=0

2007-09-06 15:45:06 · 3 answers · asked by EsMyNuM1 2

Sum of infinite series: convergent or divergent?
sum from x=2 to ∞ of 1/(x ln x)

How do I show whether this is convergent or divergent?

I do not need to find the sum if it is convergent. I just need to know how to show convergence or divergence.

2007-09-06 15:44:38 · 3 answers · asked by Anonymous

F(1) = 3
F(3) = 9
F(6) = 27
F(10) = 81
F(15) = 243
etc...
and the pattern repeats to infinity.

2007-09-06 15:27:32 · 1 answers · asked by ? 3

Three sailors were marooned on a deserted island that was also inhabited by a band of monkeys. The sailors worked all day to collect coconuts but were too tired that night to count them, They agreed to divide them equally the next morning.
During the night, one sailor woke up and decided to get his share. He found that he could make three equal piles, with one coconut left over, which he threw to the monkeys. Thereupon, he had his own share and left the remainder in a single pile.

Later that night, the second sailor awoke and, likewise, decided to get his share of coconuts. He also was able to make three equal piles, with one coconut left over, which he threw to the monkeys.

Somewhat later, the third sailor awoke and did exactly the same thing with the remaining coconuts.

In the morning, all three sailors noticed that the pile was considerably smaller, but each thought that he knew why and said nothing. When they then divided the remaining coconuts equally, each sailor received seven and one was left over, which they threw to the monkeys.

How many coconuts were in the original pile?

2007-09-06 15:20:54 · 3 answers · asked by CactusGirl 1

Winnipeg used 6.5 million sandbags to hold back the flood. Each sandbag was about 10 cm thick. About high would a stack of 6.5 million sandbags be in centimetres? metres? kilometres?

2007-09-06 15:17:18 · 6 answers · asked by Stargirl 3

2007-09-06 15:15:22 · 8 answers · asked by Kim 1

Ok so I just need help with this one so I can see how to do the rest of them.

Simplify

4[2x-(3-5x)] + 3[3x-(4+x)]

And do it step by step so I can see the steps to simplifying an equation like this ty.

2007-09-06 15:05:13 · 6 answers · asked by JunkYardPuppy 2

If you are paid $12 an hour for up to 40 hours per week and a time and a half overtime, how many hours would you have to work in a week to earn $624?

My teacher told me to use this equation for it:

624 = 12(40) + 18(h-40)

My question is: Can someone explain to me WHY that equation came out of that word problem?

Step by step, please.

2007-09-06 15:01:13 · 4 answers · asked by RAWR. 5

show all the steps please!! :-D thanks!

2007-09-06 14:56:48 · 7 answers · asked by Anonymous

4t-3tsxs+sxsxs for t= -2 and s=-3 thanx

2007-09-06 14:49:11 · 2 answers · asked by Lacuna Coil 2

Question Details: A truck starting from rest (not moving) along a straight road has an acceleration of 1.7 m/s squared.

How far has it gone after
1.2 s?
2.4 s?
3.6 s?

2007-09-06 14:47:05 · 3 answers · asked by Anonymous

I can't seem to get them right!

Thanks in advanced. :)

Evaluate the expression and write the result in the form a + bi.
(√16 - √-14)(√32 - √-28)

&
Evaluate the expression and write the result in the form a + bi.
√-4√-16/√-400

2007-09-06 14:44:53 · 3 answers · asked by Natalie 1

Evaluate square root of (7399), using as much of the information below as is necessary.

[square root of (1.51) = 1.23, square root of (1.51 = 3.86]


Please show your workings clearly, thanks.

The working solutions used square root of (1.51) = 1.23 BUT not square root of (1.51) = 3.86...why is that so? Please tell me? Thanks a lot! =)

2007-09-06 14:43:28 · 4 answers · asked by ♪£yricảl♪ 4

The problem is cos(pi/3 - pi/6)
I'm thinking it's 1/2 - sqrt3/2 which equals -.3660
Is this correct or am I doing the problem wrong?

2007-09-06 14:40:54 · 3 answers · asked by Nicky 2

2007-09-06 14:39:50 · 15 answers · asked by mike 1

Examples: 10/x-12/x-3+4=0, sqr5-x+1=x-2 and x^6-2x^3=0

2007-09-06 14:35:13 · 4 answers · asked by Tangela * 1

30-45/5.3+11
30-45/15+11
30-3+11
30-14
=16

2007-09-06 14:30:14 · 4 answers · asked by CAROL C 1

How do you know which function to use to calculate the function value for a particular x, when a function is defined piecewise with two or more definitions??

2007-09-06 14:28:12 · 3 answers · asked by Anonymous