Answer: k = 27
Step-by-step explanation:
Here's the complete question:
Write the word sentence as an equation. Then solve the equation. A number k increased by 7 is 34.
An increase in k simply means that there's an addition. This will be:
k + 7 = 34
k = 34 - 7
k = 27
Therefore, the value of k is 27
Answer: x=26
Step-by-step explanation:
Simplifying
2x + 3x + 50 = 180
Reorder the terms:
50 + 2x + 3x = 180
Combine like terms: 2x + 3x = 5x
50 + 5x = 180
Solving
50 + 5x = 180
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-50' to each side of the equation.
50 + -50 + 5x = 180 + -50
Combine like terms: 50 + -50 = 0
0 + 5x = 180 + -50
5x = 180 + -50
Combine like terms: 180 + -50 = 130
5x = 130
Divide each side by '5'.
x = 26
Simplifying
x = 26
Answer:
Step-by-step explanation:
all you HAVE TO DO IS ADD THEM ALL TOGETHER
Answer:
And the cost of play would be 1 with probability 1 for any given game. Then we can find the expected value like this:

And solving we got:

And then the best answer for this case would be:
$1.50
Step-by-step explanation:
For this case we can calculate the expected value with this formula:

We assume that the standard deck is formed just with red and black cards. For this case we have the following info:
And the cost of play would be -1 with probability 1 for any given game. Then we can find the expected value like this:

And solving we got:

And then the best answer for this case would be:
$1.50
Here is a table that will help you understand. And the answer.