Question

The value of y is directly proportional to the value of x. When x = 9 y = 63
What is the value of y when x = 6

Answer 1

If y is directly proportional to x, we can set up a proportion using the given values:

x1/y1 = x2/y2

Substituting the given values:

9/63 = 6/y2

To find y2, we can cross-multiply:

9y2 = 6 * 63

9y2 = 378

Now, divide both sides by 9 to solve for y2:

y2 = 378/9

The value of y when x = 6 is 42.