ElectricPavlov

 Supplementary means they add to 180 ^o

a        +           3a-184         = 180          solve for a      then the other is   3a-184

Factors of 28   1  2  4  7   14   28

Factors of 21   1 3  7  21

   The greates common factor of 21 and 28 is 7

She could make 7 bracelets     each with 4 blue and 3 red beads

L/M = ?    M/N = ?        they are not in your question....

L & R faces             8 x 14     x 2

F and B faces         8 x 8       x2

Top  and bottom   (  2 x 14  +  6 x 4) x 2         Add them all together

2x+5y=8      arrange into y = mx+b fomr to find slope,m

y=-2/5x+8/5     slope = -2/5

-3ax+4y=-6

y= 3/4a x -6/4        3/4a = -2/5      solve for a

A     l x w = 96

       (2w - 4) x w = 96      solve for w   

B    1 x    + 5(19-x) = 55       solve for x = number of $1 bills    then $5 bills = 19-x

Draw a cartesian coordinate system of the given points

A  -30, 18    and  B   -10,-27       find 1/5th of the way from A to B

x  from -30 to -10 is a change of 20    1/5 *20 added to -30 = -26

y  from 18 to -27 is a change of -45    1/5 * -45 added to 18 =  9   

-26, 9    is 26 miles west of port and 9 miles north of port

Which of the expressions will eliminate the 'x' terms ....these are the linear terms

   example f -  g   results in no 'x' terms because the 3x terms cancel out

      this is one answer....do you see any others?

From 90 to 180 degrees   sin is POSITIVE

cos²  + sin²  = 1

sin² = 1-cos²

sin² =1 - (-2/9)²

sin² = 77/81

sin = sqrt 77 / 9         (remember : sin is positive )

Then   Tan = sin/cos = ..............   (it should be negative value)

3x-7  =  x+9

2x=16

x=8