12:15  >  count how many more minutes it will take to get  to the next hour and put it in the minutes column. 45 min.

1 pm to 12 am  =  11 hrs. Put 11 in the hours column.

12 am to 12:05 am = 5 min. Put 5 in the minutes column.

           hrs. ---  min.             time

                          45      >       1 pm

             11                    >      12 am

                              5      >      add totals   

             __________________

               11          50

11 hrs. and 50 min.

2/5 - 3/5(10/9 + 20)

              (10/9 + 180/9)

2/5 - 3/5(190/9)

          -3/5(190/9)

              -570/45

        2/5 -12 2/3

       6/15 - 12 10/15

        6/15 - 190/15

-184/15

-12 4/15

 OR, I could have subtracted........

2/5 - 570/45

18/45 - 570/45

-552/45 = -552/45 / 3/3 

-184/15

-12 4/15

v² + 10v + 16

(v + 2)(v + 8)

I guess by now you know how to do these!

Substitution Method

2x = 3 - y

Move negative y to the left side and change it to positive y. Then move positive 2x to the right side and change it to negative 2x.

y = -2x + 3

Now, put the value of y in the next equation.

 2(-2x + 3) = 12 - x

-4x + 6 = 12 -x

+x   -6     -6  +x    

-3x       =    6   

  -3            -3

x = -2

Now, solve for y. Put the x value in either equation.

y = -2x + 3  >  you can use this equation or the original equations.

y = -2(-2) + 3

y = 4 + 3

y = 7

Solution:

(-2,7) 

(4x + 2) + (3x + 5)

1. Model each polynomial and combine like terms. Then cross out like pairs.

2. For the remaining tiles, write the polynomial

Algebra tiles:

For more information, click > Working with Algebra Tiles Then click Adding Polynomials.  Or, practice here > addition

A negative divided by a negative equals positive.

-30/-6 = 5

Check:

A positive times a negative equals negative.

5 * -6 = -30

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Population of Rochefort was 202 inhabitants in 2007. You will find below a series of charts and statistical curves of population census of the town of Rochefort. 
Population of Rochefort was 176 inhabitants in 1999, 152 inhabitants in 1990, 120 inhabitants in 1982, 148 inhabitants in 1975 and 143 inhabitants in 1968.

Click > POPULATION ROCHEFORT : statistics of Rochefort 73240

Click  >  Waldenström's macroglobulinemia - Wikipedia, the free encyclopedia or, Waldenstrom Macroglobulinemia Treatment & Management

The driving distance from Paducah, Kentucky to Las Vegas, Nevada is:

1,692 miles / 2 723 km

Click for more information: Driving Distance from Paducah, KY to Las Vegas, NV