19. -x-2 = 2/3x + 3
5/3 x + 3 = -2
5/3x = -5
x = -3
20. none are correct, you can double check me by plugging in the x and y values in the coordanates into the first problem none of them worked out in the first equasion so no need to test the second
21. -3 is the answer, capable of being done by using desmos
I think 4 divided by 8/9 - 1/2 = 4
Answer:
3.81
Step-by-step explanation:
- + -
- + -
- + -
If you were to go all ways on this chart↑ the rules would always be the same.
A negative plus a negative is a negative.
A negative plus a positive is a negative.
A positive plus a postitive is a positive.
Simple, to find the percentage you scored on your test, take
What you got= 69
Total=75
Divide,
69/75=0.92
Finally, multiply by 100.
0.92*100=92
<span>You got a 92% on the math test.</span>