B , I remember having this and it was B , but your answers could be in different spots then mine but I say B
Answer:
absolute value makes a number positive
so the fraction is
<u><em>7/10</em></u>
<u><em></em></u>
<u><em>or seven over ten</em></u>
x=23
Simplifying
(3x + -50) + (7x)
Reorder the terms:
(-50 + 3x) + (7x)
Remove parenthesis around (-50 + 3x)
-50 + 3x + (7x) =
Combine like terms: 3x + (7x)
-50 + 10x
Solving
-50 + 10x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '50' to each side of the equation.
-50 + 50 + 10x = 180 + 50
Combine like terms: -50 + 50 = 0
0 + 10x = 180 + 50
10x = 180 + 50
Combine like terms: 180 + 50 = 230
10x = 230
Divide each side by '10'.
Simplifying
x = 23
Its rational
Square root of 1.69 is 1.3 which is rational ( 1.3 = 13/10)
