Answer:
Step-by-step explanation:
1/2(7x - 6) = 6x - 10
7/2x - 3 = 6x - 10 .....multiply by 2
7x - 6 = 12x - 20
-6 + 20 = 12x - 7x
14 = 5x
14/5 = x <===
Answer:
8x+25=5x+35 (x=10/3)
Step-by-step explanation:
The equation for Store A would be: y(cost) = 8x(days) + 25
The equation for Store B would be: y = 5x + 35
So, since he wants the cost to be the same, 8x+25=5x+35
Answer: y = 2/1x + 2
Step-by-step explanation:
A slope of 2 means rising 2 and run 1 on a graph. This would make x = 2/1. The + 2 allows the line to pass through (0,2) and therefore it will also pass through (-2,-2).
You add all the numbers and then divide by how many numbers there were to find the mean or average. In this case it is D 11
<span>A. 14/95
This question is very poorly worded. If you take it as worded, the correct answer is 7/19 because the first condition "Shayne has removed a red marble" is already satisfied. But since it's not an available choice, I will assume the question actually is "If Shayne selected two marbles without replacing the first, what's the probability that both marbles are red?" And for that question we have
1st marble being red
There's 8 out 20 red marbles, so the probability of selecting a red marble is 8/20.
2nd marble being red
Now there's 7 out of 19 marbles being red. So the probability of the 2nd marble being red is 7/19.
And the combined probability of both marbles being red is
8/20 * 7/19 = 56/380 = 14/95
So the answer is A. 14/95</span>
