Answer:
x = 4
Step-by-step explanation:
3x -5 = -2 + 9
-2 + 9 = 7 so now its 3x - 5 = 7
add 5 to the -5 so it cancels itself out. then add the 5 to 7 so it become 12. the you have 3x = 12
divide 12 ÷ 3 = 4
x = 4
Answer:
The answer is B
Step-by-step explanation:
Choosing blue or red: 3 blue + 4 red = 7 marbles
3 blue + 2 green + 4 red + 1 yellow = 10 marbles
Probability blue or red marble: 7/10
Choosing a marble that isn't blue or red: 2 green + 1 yellow = 3 marbles
Total marbles: 3 blue + 2 green + 4 red + 1 yellow = 10 marbles
Probability non-blue or red marble: 3/10
Now despite what you may believe, <u>1:3 is not 1/3 in this situation.</u> In this case, it means "1 equal part to 3 equal parts", which is a total of 4 equal parts. <u>In short, this question is to place point P 1/4 the distance from A to B.</u>
Firstly, how far apart is -1 from 7 (the x-coordinates)? That would be 8 units. Multiply 1/4 by 8:

Next, how far apart is 2 from 8 (the y-coordinates)? That would be 6 units. Multiply 1/4 by 6:

Next, since from -1 to 7 you are <em>increasing</em>, add 2 to -1:

1 is your x-coordinate
Next, since from 2 to 8 you are <em>increasing</em>, add 3/2 to 2:

7/2 is your y-coordinate.
<u>Putting it together, your answer is A. (1, 7/2)</u>