10x+3y=43
-9x-y=-20
From second equation,
y=-9x+20
Substitute third equation into first equation,
10x+3(-9x+20)=43
10x-27x+60=43
-17x=43-60
-17x=-17
x=1
y= -9+20= 11
Option B
Answer:
EBGA
Step-by-step explanation:
The triangle is isosceles (XZ = YZ), so the base angles are congruent. The total of all three angles in the triangle is 180 degrees, so subtracting out 52 leaves 128 degrees for the two base angles together. Each base angles measures half of that, so 
, code E.
Look at vertex Y. The big angle there also measures 64 degrees.
Angle 3 is a vertical angle with the 88 degree angle, so its measure is also 88 degrees (code G).
Finally, angle 4 is an exterior angle in the small triangle that contains angles 2 and 3. In that triangle, angles 2 and 3 are the remote interior angles.
First use the point slope form
y-y1=m(x-x1)
plug in the ordered pair to the y1 and x1 so
y--3=m(x--8)
add the slope and make the double minus into a plus
y+3=34(x+8)
then you can distribute the 34
y+3=34x+272
then to get it to slope intercept you subtract 3 from both sides of the equation to make it y=mx+b so
y=34x+269
Step-by-step explanation:
nm=16
m=16/n
m=16/8
m=2
Hey there! I’m happy to help!
Let’s first subtract 4 from 20 to see how much was lost.
20-4=16
Now, we see that 16 is a certain percent of twenty that we want to find. When talking about percents, the word “is” represents an equal sign. So, we can write this equation. We will have p represent our prevent.
16=20p (16 is a certain percent of 20)
Now, we solve by dividing both sides of the equation by 20 to isolate the p.
p=0.8
0.8 is 80% or 4/5, so 4/5 of the dam water has been lost.
Have a wonderful day! :D
