1. Divide by 4
sqrt 2x+8 = 6
2. Square both sides to remove square root
2x+8 = 36
3. Subtract 8
2x = 28
4. Divide by 2 to make x by itself
x = 14
Answer:
Correct choice is b.
Step-by-step explanation:
Rafael is taking a test that contains a section of 12 true-false questions. Exactly 8 correct answers of false from 12 true-false questions have
![C_{8}^{12}=\dfrac{12!}{8!(12-8)!}=\dfrac{12!}{8!\cdot 4!}=\dfrac{8!\cdot 9\cdot 10\cdot 11\cdot 12}{8!\cdot 1\cdot 2\cdot 3\cdot 4}=9\cdot 5\cdot 11=495](https://tex.z-dn.net/?f=C_%7B8%7D%5E%7B12%7D%3D%5Cdfrac%7B12%21%7D%7B8%21%2812-8%29%21%7D%3D%5Cdfrac%7B12%21%7D%7B8%21%5Ccdot%204%21%7D%3D%5Cdfrac%7B8%21%5Ccdot%209%5Ccdot%2010%5Ccdot%2011%5Ccdot%2012%7D%7B8%21%5Ccdot%201%5Ccdot%202%5Ccdot%203%5Ccdot%204%7D%3D9%5Ccdot%205%5Ccdot%2011%3D495)
possible groups.
75% of 12 can be represented with the equation 75/100=x/12
Then to solve
75(12)= 100x
900 = 100x
9=x
So the distance from the school to the park is 9 miles.
Okay, so it says that per every 4 ounces you take in 50 calories. So 12 divided by 4 gives you 3, this is done to help you figure out how many times he drinks the 50 calories. Since he did it 3 times that means you multiply 50 and 3 which gives you 150 calories as his ending calorie intake of the juice. Hopes this helps you to understand the question!