Answer:
12
Step-by-step explanation:
Answer:
16 = 2x
Step-by-step explanation:
The pattern for a direct variation equation is y = kx
y is the "output" or result
k is the "constant" a number that doesn't change in the equation.
x is the "unknown" variable that makes the output of the equation true when found.
Here x=8
16 = 2(8)
Six books can be arranged 720 different ways<span>. Because there are six books to arrange on the shelf, there are six stages in the problem. You must decide what the first book will be, what the second book will be, what the third book will be, and so on.</span>
It is equivalent to -2−15 because adding 21+(-23) is the same as subtracting 21−23.
The value of the expression is -17 because 21+(-23)−15 is the same as 21+(-38).
These 2 statements are true.
Option C
The correct ordered pair is (1, -2)
<em><u>Solution:</u></em>
Given system of equations are:
5x - 2y = 9 ---- eqn 1
3x + 4y = -5 ----- eqn 2
We have to use elimination method to solve the system of equations
Multiply eqn 1 by 2
10x - 4y = 18 ---- eqn 3
Add eqn 2 and eqn 3
3x + 4y = -5
10x - 4y = 18
(+) -------------------
13x = 13
<h3>x = 1</h3>
<em><u>Substitute x = 1 in eqn 1</u></em>
5x - 2y = 9
5(1) - 2y = 9
5 - 2y = 9
2y = -4
<h3>y = -2</h3>
Thus the ordered pair (1, -2) Option C is correct
