Step-by-step explanation:
To do this, we will substitute the x values to their corresponding equations,
1)
Given 2x + 15 = 19
Calculated 2x + 15 = 19
Given = Calculated, this solution is correct.
2)
Given 3 + x + 2 - x = 16
Calculated 3 + x + 2 - x = 5
Given not equal to calculated, this solution is incorrect.
3)
Given (x+2)/5 = 2
Calculated (x+2)/5 = 2
Given = Calculated, this solution is correct.
4)
Given 2x - 8 = 6
Calculated 2x - 8 = 6
Given = Calculated, this solution is correct.
5)
Given 1/3x + 5 = 14
Calculated 1/3x + 5 = 11
Given not equal to Calculated, this solution is not correct.
Therefore the Correct solutions are 1,3 and 4.
Answer: 1/36
Step-by-step explanation:
Calm down, I'm here to help! You might want to watch some videos on how to solve negative powers, but it's simpler than you think.
An exponent expression is formatted as a^b.
If "b", the exponent, is negative, then you can solve expression like this:
1/a^-b
By writing -b, I mean the opposite of b. For example, the opposite of -2 is 2.
Let's use that rule to solve this problem.
1/6^-(-2)
1/6^2
1/6*6
1/36
There you go! It's not too scary now, is it? Let me know if you'd like me to link some resources!
The answer is 3 3/4
Here's how I got my answer:
Step 1: Split the numbers apart. Which leaves us with 
Step 2: Find the greatest common factor between the two(25). Then divide it by 75 and 100. Which leaves us with 
(once simplified).
Step 3: Combine the whole number component with the fraction, which leaves us with our answer, 4 3/4
Answer:
9
Step-by-step explanation:
13-9= 4
Answer:
Can you sure a picture?
Step-by-step explanation:
