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Density = Mass / Volume

13.6 = Mass / 200

Mass =200 x 13.6 =2,720 grams.

3.1415

I will answer your question for you...

See the answer under your first post.

In the context of Algebra, factor means to find the factors of an expression.

For example, the factors of x^2 + 3x + 2 are (x + 1) and (x + 2).

10077696

If this is a linear equation, you're probably trying to isolate y. To do that, you have all "y" on one side and no y's on the other side:

3x + 1/5y = 7

Subtract 3x from both sides:

3x + 1/5y = 7

3x - 3x + 1/5y = 7 - 3x

0 + 1/5y = 7 - 3x

1/5y = 7 - 3x

Multiply both sides by 5, to cancle the 1/5 coefficient of y:

1/5y = 7 - 3x

5(1/5)y = 5(7) - 5(3)x

y = 35 - 15x

You can also switch the x and the constant term, for the form 'y = mx + b':

y = -15x + 35

Talk to an Accountant!.

This is a good example of why our instructor tells us to check our work.

C ≠ 8/7

If you substitute 8/7 into the equation it will not = 5/8

Using your graphic calculator, try this.

5/7 x (8/7)

You will get  40/49

The correct answer is  7/8. Try it for yourself.

5/7 x (7/8) = 5/8   or  .625

C = 7/8

216^1/3 = 6

Add the digits vertically from right to left:

0 + .5 = .5:

 28

+ 1.5

   .5

8 + 1 = 9:

 28

+ 1.5

  9.5

2 + 0 = 2:

 28

+ 1.5

 29.5

------

8+0 = 8:

 28

+10

  8

2 + 1 = 3:

 28

+10

 28

2.7

11.2

Volume=4/3 x Pi x r^3, r=radius.

1/5q = 9- 2/5q

1/5q +2/5q =9 add 2/5 to both sides

3/5q = 9 cross multiply

3q = 9 x 5

3q =45 divide both sides by 3

q=45/3

q= 15

The number is = 7 x 11 x 13 =1,001

The deductions   total    15/100 x 550  =   $ 82.5       Wow, wish I had THAT tax rate !!!

2x + 7x - 7 - 52 = 90

9x - 59 = 90      Add 59 to both sides of the equation

9x = 149         Divide both sides by 9

x = 149/9 = 16 5/9

3  2/3

There is no solution for this !

4m - 4 = 4m      subtract 4m from both sides

-4 = 0                Not Possible !

Anything to the ZERO POWER = 1