5\7m-2-6\7m=-13 what is the answer

Answers

Answer 1

Answer: 5/7m - 2 - 6/7m = -13
5/7m - 6/7m - 2 = -13
-1/7m - 2 = -13
-1/7m = -11
-m/7 = -11
-m = -77
m = 77

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Which ordered pair does NOT lie on the graph of h(x )= -2x + 7I have no idea how to solve this, please help me! Thanks!

Answers

Replace X with the x value in the parenthesis and solve. If the answer equals the Y value inside the parenthesis, it is a solution.

A) (-2, 3), -2(-2) +7 = 4+7 = 11. 11 does not equal 3 so this is not a solution.

B) (-1,9), -2(-1) +7 = 2+7 = 9. 9 equals 9, this is a solution.

c) (3,1), -2(3)+7 = -6+7 = 1, 1 equals 1, this is a solution.

d) (4,-1) = -2(4) +7 = -8 +7 = -1. -1 equals -1, so this is a solution.

The only one that isn't a solution is A.

Angle QPS is supplementary to angle psr. Also QPS=(2x+12) and PSR is x. Find the value of x. Can you help

Answers

What does 'supplementary' mean ?
It means the two angles add up to 180 degrees.
So ...
      (2x + 12) + (x) = 180

Eliminate parentheses:    2x + 12   +   x   = 180

Add up the 'x' terms: 3x + 12    = 180

Subtract 12 from each side: 3x        = 168

Divide each side by 3 :    x        = 56 degrees

Write the sum of numbers as a product in their GPS and another sum 44+40