The answer for this problem is -8x+2
The total mass was 149.5 grams.
Setting up an equation, we have that the sample size, 39.1, is 5 3/4 (5.75) grams less than 3/10 of the total mass; this gives us
39.1 = 3/10x - 5.75
Adding 5.75 to both sides, we have
44.85 = 3/10x
Multiplying both sides by 10,
448.5 = 3x
Dividing both sides by 3,
149.5 = x
Answer:
![n = m - a](https://tex.z-dn.net/?f=n%20%3D%20m%20-%20a)
Step-by-step explanation:
Given
![a = m - n](https://tex.z-dn.net/?f=a%20%3D%20m%20-%20n)
Required
Solve for n
![a = m - n](https://tex.z-dn.net/?f=a%20%3D%20m%20-%20n)
Add n to both sides
![a + n = m - n + n](https://tex.z-dn.net/?f=a%20%2B%20n%20%3D%20m%20-%20n%20%2B%20n)
![a + n = m](https://tex.z-dn.net/?f=a%20%2B%20n%20%3D%20m)
Subtract a from both sides
![a - a + n = m - a](https://tex.z-dn.net/?f=a%20-%20a%20%2B%20n%20%3D%20m%20-%20a)
![n = m - a](https://tex.z-dn.net/?f=n%20%3D%20m%20-%20a)
<em>Hence, option C answers the question</em>
Answer:
letter a
Step-by-step explanation:
We would need a picture to help you with this question.