Answer/Step-by-step explanation:
4x - 7 = -2x + 12 (Given)
Add 2x to both sides
4x - 7 + 2x = -2x + 12 + 2x (Addition property of equality)
6x - 7 = 12 (Simplication)
Add 7 to both sides
6x - 7 + 7 = 12 + 7 (Addition property of equality)
6x = 19 (Simplification)
Divide both sides by 6
(Division property of equality)
Answer: 6.8571 (Round as needed)
Hope this is correct
Step-by-step explanation:
This is a simple ratio problem
Using the similarity statement we can say 14:12, (ab:pq)
That is our ratio.
So we do 14/12 = 8/x, we solve this using algebra to get our answer.
Hope this is correct.
Answer: Everything except 3 * 129
Step-by-step explanation:
You can break 388 in half twice in order to find the answer.
Since 388/2 = 194, then 194 * 2 = 388
Since 388/4 = 97, then 97 * 4 = 388
Do note that 3 and 129 are both odd. Two odd factors can never make an even product. So that is out immediately.
Hope this helped a little bit, I tried to be quick with the explanation because I know how annoying those online things are. If you need anything explained more, just let me know.
Answer:
56
Step-by-step explanation:
The answer is A.
The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
-8+-4+-3+-11=-26
-26÷4=-6.5
