suppose y varies directly with x and y = 25 when x = 140. What is the value of x when y = 36?
If y varies directly with x, we can write the equation y = kx, where k is the constant of variation.
To find the value of k, we can substitute the given values of x = 140 and y = 25 into the equation:
25 = k * 140
Solving for k:
k = 25/140
k ≈ 0.1786
Now we can use the value of k to solve for x when y = 36:
36 = 0.1786 * x
Solving for x:
x = 36/0.1786
x ≈ 201.9048
Therefore, the value of x when y = 36 is approximately 201.9048.