32.4k views
3 votes
Suppose the value of y varies directly with x. If x = - 2 , then y = -5 , What is the value of x when y = 35?

User Thejh
by
7.7k points

1 Answer

6 votes

Final answer:

To find the value of x when y = 35, use the concept of direct variation. Substitute the given values into the equation y = kx to solve for the constant of variation.

Step-by-step explanation:

To find the value of x when y = 35, we can use the concept of direct variation. In direct variation, when one variable increases, the other variable also increases or decreases by a constant factor. In this case, we are given that y varies directly with x. We can write this as y = kx, where k is the constant of variation.

Using the given information, we can form an equation to solve for k. When x = -2, y = -5. Substituting these values into the equation gives us -5 = k(-2). Solving for k, we get k = -5/-2 = 2.5.

Now that we know the value of k, we can use it to find the value of x when y = 35. Substituting these values into the equation gives us 35 = 2.5x. Solving for x, we get x = 35/2.5 = 14.

User Scribble
by
7.8k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories