if x varies y,x=30 when y=12,find the formula connecting x and y
varies how?
either y = kx or xy = k.
Your choice.
you first find the constant then divide the both variables to get your relationship
It will be x varies y = 30 therefore it is equal to 30÷12 then it will be 5\2 so the formula is division
Questions an answer
You first find the two constant and your two constant will represent the equation
If x× y and x =30 when y =12 .find
A the formular connection x and y
B x when y =10
C y when x =14
The formula connecting x and y is 5/2 which is x=5/2y
It easy
The formula connecting x and y is 5 equal to 5/2n or n/2
To find the formula connecting x and y, we need to determine the relationship between these two variables. From the given information, we know that x varies with y, meaning that as the value of y changes, the value of x also changes.
To start, let's examine the specific values provided: when y=12, x=30. From this data point, we can begin to understand the relationship between x and y.
One common way to express the relationship between two variables is through a linear equation in the form of y = mx + c, where m represents the slope and c represents the y-intercept.
To find the slope (m) of the equation, we can calculate the change in y divided by the change in x. In this case, the change in y is 12 - 0 = 12, and the change in x is 30 - 0 = 30. Thus, the slope (m) is 12/30 = 2/5.
Now, we can substitute the slope and one point (x,y) from the given data into the equation y = mx + c to solve for the y-intercept (c). Using the data point (x,y) = (30,12), we have:
12 = (2/5) * 30 + c
12 = 12 + c
By solving this equation, we find that c = 0.
Therefore, the formula connecting x and y based on the given information is:
y = (2/5)x + 0
Simplifying it further, we get:
y = (2/5)x
So, the formula connecting x and y is y = (2/5)x.