I NEED HELP!! PLEASE ANSWER WITHIN NEXT 5 minutes PLEASE HELP!!!!! WHAT IS THE RULE????
1 answer:
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<em>Note: It seems you may have unintentionally missed writing the complete question. As total cost is missing.</em>
<em>So, I am assuming how many tickets Mr. XYZ can buy if he/she pays 530 dollars.</em>
<em>The solution would still clear your concept though.</em>
Answer:
Please check the explanation.
Step-by-step explanation:
Given the function
c(x) = 18x -10
The slope-intercept form of the line equation
We know that the slope-intercept form of the line equation
where m is the slope and b is the y-intercept
so
c(x) = 18x - 10
comparing with the slope-intercept form of the line equation
- rate of change = 18
- c(x) or y represents the cost
- 'x' represents the number of tickets
Assuming the total cost i.e. c(x) = $530
In order to determine the value of x, set c(x) = 530
i.e.
530 = 18x -10
switch sides
18x - 10 = 530
add 10 to both sides
18x - 10 + 10 = 530 + 10
18x = 540
Divide 18 to both sides
18x/18 = 540/18
x = 30
Therefore, if you can buy x = 30 tickets if you pay 530 dollars.
19. -4x(3x-5y)
20. 6x+ 20
21.
22.
Answer:
option (b) is correct.
First step to solve for deriving the quadratic formula from the quadratic equation is completing the square.
Step-by-step explanation:
Given : the quadratic equation
We have to find the first step for deriving the quadratic formula from the quadratic equation.
Quadratic formula is given by
Consider the given quadratic equation
Divide the equation by a, we get,
Take to other side, we get,
Add to both side, we get,
Thus, the left side is in the form of
On solving, we get,
Then solve for x , we get quadratic formula
Thus, first step to solve for deriving the quadratic formula from the quadratic equation is completing the square.
Thus, option (b) is correct.