Answer:
Perpendicular
Step-by-step explanation:
To tell if the lines are perpendicular/parallel, you must look at the slope, but in this case, you must first get y by itself, like so:
3x + 7y = 15
-3x - 3x
___________
7y = -3x + 15
<em><u>Divide both sides by 7:</u></em>
y = 
<em><u>Now the other equation:</u></em>
7x - 3y = 6
-7x -7x
_________
-3y = -7x + 6
<em><u>Divide both sides by -3:</u></em>
y = 
You can see that the lines are perpendicular because the slopes (
and 
) are opposite reciprocals.
In the 500 spin test, 4 was chosen 121 times. This mean it was chosen 121 times out of 500, or 121/500.
Now, we need to convert this into a percent. We do this by dividing the numerator by the denominator, and multiplying the result by 100.
121/500 * 100 = 24.2, so the probability of spinning a 4 is 24.2%.
This would be true. The points make up a straight line
Answer:
9 and 15
Step-by-step explanation:
9 + 15 = 24/ 2 = 12
15 - 9 = 6
X = 6
To solve this problem, you multiply both sides by 3. Next you divide both sides by 2
