Worksheet on Changing the Subject in an Equation or Formula


In worksheet on changing the subject in an equation or formula we will practice how to find the value of the variables by changing the subject in an equation or formula using the substitution method.


Worksheet on Changing the Subject in an Equation or Formula

1. Given A = 1/2 × b × h, when A = 75 and h = 10, find b

2. Given V = 1/3 πr²h when V = 308 and h = 6, find r

3. Given S = 6a² when S = 600, find a

4. Given P = 2 (l + b) when l = 15 and P = 50, find b




5. Given C.P. = (S.P. × 100)/(100 × g %) find S.P. when C.P. = $ 140 and G% = 5%.

6. A = P + I find l if A = 4500 and P = 3750.

7. In C = 5/9 (F - 32) find F if C = 25.

8. In V = l × b × h find l if V = 3000, b = 15, h = 10.

9. If D = 2r find r if D = 50.

10. If x + y + z = 180 find y if x = 70 and z = 65.

11. In v = u + ft find f if v = 36, u = l2 and t = 8.

12.In gt²/4π² = l, find the value of t if l = 49, t = 4.

13. In A = 2h (l + b), find h if A = 50, l = 6, b = 4.

14. In S = n/2 {2a + (n - 1) d}, find d when S = 125, n = 10, a = 2.

15. If C = 2 πr, find r if C = 88, π = 22/7.

16. If D = S × T, find S when D = 450 and T = 15.

17. In a = (p - m)/(p + m), if a = 3/7 and p = 10, find m.

18. If I = (P × R × T)/100, find T if I = 80, P = 400, R = 10.

19. In L% = (L/C.P.) × 100, find L if L% = 12 and CP = 200.

20. In V = π r²h, if V = 1540, h = 10, find r.



Answers for worksheet on changing the subject in an equation or formula are given below to check the exact answers of the above questions on finding the value of the subject in an equation or formula.




 Formula

Formula and Framing the Formula

Change the Subject of a Formula

Changing the Subject in an Equation or Formula

Practice Test on Framing the Formula


 Formula - Worksheets

Worksheet on Framing the Formula

Worksheet on Changing the Subject of a Formula

Worksheet on Changing the Subject in an Equation or Formula










7th Grade Math Problems

8th Grade Math Practice

From Worksheet on Changing the Subject in an Equation or Formula to HOME PAGE




Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.



Share this page: What’s this?

Recent Articles

  1. Symmetrical Shapes | One, Two, Three, Four & Many-line Symmetry

    Apr 23, 24 04:50 PM

    Symmetrical Figures
    Symmetrical shapes are discussed here in this topic. Any object or shape which can be cut in two equal halves in such a way that both the parts are exactly the same is called symmetrical. The line whi…

    Read More

  2. Relation between Diameter Radius and Circumference |Problems |Examples

    Apr 23, 24 03:15 PM

    Relation between Radius and Diameter of a Circle
    Relation between diameter radius and circumference are discussed here. Relation between Diameter and Radius: What is the relation between diameter and radius? Solution: Diameter of a circle is twice

    Read More

  3. Circle Math | Terms Related to the Circle | Symbol of Circle O | Math

    Apr 22, 24 01:35 PM

    Circle using a Compass
    In circle math the terms related to the circle are discussed here. A circle is such a closed curve whose every point is equidistant from a fixed point called its centre. The symbol of circle is O. We…

    Read More

  4. Preschool Math Activities | Colorful Preschool Worksheets | Lesson

    Apr 21, 24 10:57 AM

    Preschool Math Activities
    Preschool math activities are designed to help the preschoolers to recognize the numbers and the beginning of counting. We believe that young children learn through play and from engaging

    Read More

  5. Months of the Year | List of 12 Months of the Year |Jan, Feb, Mar, Apr

    Apr 20, 24 05:39 PM

    Months of the Year
    There are 12 months in a year. The months are January, February, march, April, May, June, July, August, September, October, November and December. The year begins with the January month. December is t…

    Read More