Supplementary angles must add up to 180 degrees.
3x-12=180
x=64 degrees
0.0816 is the probability so around only 3% so around only 5 or 6 people out of the total 180.
Answer: 78% of the markers are black
Step-by-step explanation:
1. Subtract the total of markers by the amount that are blue.
a. 32-7 = 25
2. Divide the amount of black markers by the total of markers
b. 25/32 = 0.78125
3. Make this number a percentage
c. 0.78125 x 100 = 78%
Answer:
6.4 = k*4
k = 6.4 / 4
k = 1.60
11.2 = k * 7
k = 11.2 / 7
k = 1.60
16 = k * 10
k = 16/10
k = 1.60
20.8 = k * 13
k = 20.8/13
k = 1.60
Step-by-step explanation:
hope this helps! so sorry if it doesn't try not to stress over school please<3
Answer:
(-9/7,-26/7)
[more detailed at the bottom of the explanation]
Step-by-step explanation:
I am assuming that this is a system of equations...
So, knowing that y is equal to x + 5, you would plug that in the second equation and find x. Then you would plug x and find y.
—————
Step 1)
Equation 1:
y = (x + 5)
Equation 2:
5x + 2y = 1
Equation 2 can also be written as:
5x + 2(x+5) = 1
I wrote x+5 instead of y because the first equation tells us that y is equal to x + 5.
—————
Step 2)
Solve for x .
5x + 2(x+5) = 1
5x + 2x + 10 = 1
7x + 10 = 1
7x = 1 - 10
7x = -9
x = -9/7
—————
Step 3)
Plug the x value back in the first equation.
y = -9/7 + 5
y = -26/7
—————
Solution:
x = -9/7
y = -26/7
In ordered pair form:
(-9/7,-26/7)
————— ————— —————
Hope this helps !!!!!!!
