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Area = 40 cm^2

Perimeter  = 36 cm

So

36 =  2 (W + L)

18 =  W + L

18 - L  = W           (1)

And

40  = L * W        substitute  (1)  for W

40  = L (18 - L)

40  =  18L - L^2       rearrange as

L^2 - 18L + 40 =  0      

Using the quadratic formula...the two solutions for L  are

[9  - √41] cm       and   [ 9 + √41  ] cm

And depending upon which value we assign to the length, the width will be the other value [i.e., the conjugate value ]

So  .....the resulting figure will be a rectangle having these two dimensions

I don't know

2.7 - x  > -3.3   add 3.3, x to both sides

6 > x

You cannot calculate directly,

5x - 4y = 1x + 3y

5x - 1x = 3y + 4y

4x = 7y ...............(1)

suppose if we substitute the value of x as 5 in equation (1), we get,

20 = 7y

y = 20/7

OR we can substitute, y as 8 in equation (1), we get,

4x = 56

x = 56/4 = 14

Just type like this into that bad mammajamma 

If you want \(\frac56\)

Type: 5/6

If you want: \(\frac{1+2}{3+4}\)

Type: (1+2)/(3+4)

Thank You, I hope it is right!

I think you want to solve for a .

5xy²z + a = 7xy²z

Subtract 5xy²z from both sides of this equation.

a = 7xy²z - 5xy²z

Combine like terms.

a = 2xy²z

If anyone wants to chat, I will get on here tomorrow. Feel free to post anything while I'm gone because, like I said, I will see it tomorrow. See you guys later.

Use this formula to find the Future Value of the investment:

FV=P{[1 + R]^N - 1/ R}

FV=200 x {[1 + 0.03/12]^(20*12) - 1 / 0.03/12}

FV=200 x                         328.301998.......

FV =$65,660.40 - This is what your $200 per month will be worth in 20 years or 240 months.

$200 x 240 =$48,000 - This is how much you deposited in 20 years.

$65,660.40 - $48,000 =$17,660.40 - This is the interest you would earn in 20 years.

So... What's the answer to the riddle then, The Riddler? 

1814289.0210867465091631

Ehh, my grade is okay. I have a C in Geometry. I'm good at it, but I just think it's really boring! 

By the way, noice riddle, dude! 

Total volume of punch  =  12 * 850  =  10200 cm^3   (1)

Volume of one cup  =  (1/3) * pi * (7/2) * 12 cm^3    (2)

Cups required  =   (1) / (2)   =

10200 / [ (1/3) * pi * (7/2) * 12 ]   =  about   66 cups   [ actually you need 67 ]

Thank you guys for the help! :D

\(\sqrt{1.4184}\)

= 1.1909659944767525

Rounded to nearest tenth = 1.19

The first thing to do is to find the Future Value of the Billy Bob's $5,000 investment @ 8% for 43 years.

FV = 5,000 x [1 + 0.08/4]^(43*4)

FV = 5,000 x 1.02^172

FV = 5,000 x     30.14598946562.....

FV =$150,729.95 - This is what the retirement fund of Billy Bob is worth at 65.

The next thing to do is to calculate the monthly payments that he will receive for the next 25 years.

PV=P{[1 + R]^N - 1 / [1 + R]^N} / R

150,729.95 = P x {[1 + 0.07/12]^(25*12) - 1 / [1 + 0.07/12]^(25*12)} / 0.07/12

150,729.95 = P x                                  141.48690338........

PAYMENT = 150,729.95 / 141.48690338 =$1,065.33 - This is the monthly payment that Billy Bob should receive each and every month for 25 years.

P.S. If you have any questions, just let us know here.

2/5 as decimal is 0.40 and as a percent is 40%

You are trying to calculate the Future Value of $30,627.78. But notice that the interest rate is 70%, the way you have it written!! I think that it is more likely that you meant 7%. So, I will calculate it at 7% as follows: $30,627.78 (1+0.07/12)^12*30

FV =$30,627.78(1 + 0.0058333...)^360

FV =$30,627.78 x        8.116497475.....

FV =$248,590.30

Nvm i got the answer from yahoo answers. its 20, thx for ur help...

Note  that 

5x - 4y =

5(5)  - 4(8)   =  

25 - 32  =

-7

But

1x + 3y  =

1(5) + 3(8) =

5 + 24  =

29

So........this "equation" is not true for these values of x and y

I think you mean the side = 6

The area of the base  =  6 (1/2) 6^2 * √3/2     m^2

The  volume  = 

  base area * height  =

[ 6 (1/2) 3^2 * √3/2 }  * 8   ≈  748.25 m^3

Close enough !!!! 

3 weeks  = 21 days.....so

50(1.07)^21  = about 207 flies

1814289.02109

Diameter  = Circumference  /  pi

Surface area of a cylinder  =

2 * pi * (radius)^2   +  2 * pi * (radius) * (height)  =

( 2 * pi  * radius ) * [ radius  +   height ]

Can you take it from here ???