Answer:
D. 80%
Step-by-step explanation:
It's easier to see it as 80/100 or 8/10
hopefully this helped :3
-12.6 as a percent is -1260%
First, solve 10x + y = -20 for y: y = -20 - 10x
Next, substitute -20 -10x for y in the second equation:
-20 - 10x = 2x^2 - 4x - 16.
Rearranging, 2x^2 + 6x + 4 = 0
Simplifying, x^2 + 3x + 2 = 0
The roots of this poly eqn are -1 and -2. Therefore, x = -1 and x = -2.
One by one, subst. these x-values into y = -20 - 10x to find the corresponding y-values.
Your answers should look like this: (-1, y) and (-2, y) (different values for y).
Answer: Probability: 3/12 or 1/4
Step-by-step explanation:
Answer:
x=4
Step-by-step explanation: