Answer:
5.9666666
Step-by-step explanation:
Convert the mixed number to a decimal: 3.6666666.
Add the two decimals together.
5.9666666666
You need to get x by itself. Add 6 to both sides.
x = 14
Answer: C
Step-by-step explanation:
Yes, because the population values appear to be normally distributed
To find your missing angle:
180-126 = 54
so 9x must equal 54
54= 9x
6 = x
Answer:
20
Step-by-step explanation:
The two given and marked angles add up to 90.
A = x
B = 3x + 10
A + B = 90 Substitute for A and B. A and B are just letters I gave things.
x + 3x + 10 = 90 Combine the left
4x + 10 = 90 Subtract 10 from both sides.
4x +10-10 = 90-10 Combine
4x = 80 Divide by 4
4x/4=80/4
x = 20