Knowee
Questions
Features
Study Tools

W varies inversely as the square of t.  If W = 12 when t = 2. Find t when W = 27.Options :27t = 2427t2=48108 = 12t212t=54

Question

W varies inversely as the square of t.  If W = 12 when t = 2. Find t when W = 27.Options :27t = 2427t2=48108 = 12t212t=54

🧐 Not the exact question you are looking for?Go ask a question

Solution 1

The problem states that "W varies inversely as the square of t". This can be written as W = k/(t^2), where k is the constant of variation.

Given that W = 12 when t = 2, we can substitute these values into the equation to find k:

12 = k/(2^2) 12 = k/4 k = 12 * 4 k = 48

Now that we have the constant of variation, we can find t when W = 27 by substituting these values into the equation:

27 = 48/(t^2) 27t^2 = 48 t^2 = 48/27 t^2 = 1.7778 t = sqrt(1.7778) t = 1.33 (rounded to two decimal places)

So, the value of t when W = 27 is approximately 1.33.

This problem has been solved

Solution 2

The problem states that "W varies inversely as the square of t". This can be written as W = k/(t^2), where k is the constant of variation.

Given that W = 12 when t = 2, we can substitute these values into the equation to find k:

12 = k/(2^2) 12 = k/4 k = 12 * 4 k = 48

Now that we have the constant of variation, we can find t when W = 27 by substituting these values into the equation:

27 = 48/(t^2) 27t^2 = 48 t^2 = 48/27 t^2 = 1.7778 t = sqrt(1.7778) t = 1.33 (rounded to two decimal places)

So, the value of t when W = 27 is approximately 1.33.

This problem has been solved

Similar Questions

If w varies inversely as y and w = 2 when y = 3, find w when y = 6.

If W varies directly with F and when W = 24, F = 6. Find the value of W when F = 10?Choices:- 26 38 40 32

A quantity p varies partly t and partly as the square of t, when t=20, p=45 and when t=24, p=60. (i) Express p in terms of t.(ii) Find p when t=32

x varies directly as square of y and y =12, x=4. Find x when y =18.a.9/16b.1/9c.16/9d.9

x varies directly as the square root of y and the square of z. Given that x = 9 when y = 144 and z = 4 , find the value of y when x = 27 and z = 6.

1/2

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.