Answer: C
Step-by-step explanation:
5x+3y=13
+(-5x-12y=23)
---------------------
-9y=36
y=-4
To find x plug in y into any equation.
5x+3(-4)=13
5x=25
x=5
Answer:
x = 24°
Step-by-step explanation:
Here we can see that 120° with the right angle is equal to 180° :
120° + right angle = 180°
then:
right angle = 180° - 120° = 60°
The right angle with 5x angle is equal to 180° too ;
right angle + 5x = 180°
solve for x :
5x = 180° - 60°
x = 24°
That its.
Answer:
5/9.
Step-by-step explanation:
The slope is the difference in y-values divided by corresponding difference in x-values.
So here:
Slope = (7-2)/(10-1)
= 5/9.
100%/x%=24/16
(100/x)*x=(24/16)*x - we multiply both sides of the equation by x
100=1.5*x - we divide both sides of the equation by (1.5) to get x
100/1.5=x
66.6666666667=x
x=66.6666666667
now we have:
<span>16 is 66.6666666667% of 24</span>
Answer: B) 160
<u>Step-by-step explanation:</u>
Since the Standard deviation of 21 bins is 3 bins, then the first 7 bins falls in the first 2.5% edge of the bell curve.
2.5% of 21 times 1000 = (0.025)(21)(1000) = 160