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.



New! Comments

Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.




Share this page: What’s this?

Recent Articles

  1. Converting Fractions to Decimals | Solved Examples | Free Worksheet

    Apr 28, 25 01:43 AM

    Converting Fractions to Decimals
    In converting fractions to decimals, we know that decimals are fractions with denominators 10, 100, 1000 etc. In order to convert other fractions into decimals, we follow the following steps:

    Read More

  2. Expanded Form of a Number | Writing Numbers in Expanded Form | Values

    Apr 27, 25 10:13 AM

    Expanded Form of a Number
    We know that the number written as sum of the place-values of its digits is called the expanded form of a number. In expanded form of a number, the number is shown according to the place values of its…

    Read More

  3. Converting Decimals to Fractions | Solved Examples | Free Worksheet

    Apr 26, 25 04:56 PM

    Converting Decimals to Fractions
    In converting decimals to fractions, we know that a decimal can always be converted into a fraction by using the following steps: Step I: Obtain the decimal. Step II: Remove the decimal points from th…

    Read More

  4. Worksheet on Decimal Numbers | Decimals Number Concepts | Answers

    Apr 26, 25 03:48 PM

    Worksheet on Decimal Numbers
    Practice different types of math questions given in the worksheet on decimal numbers, these math problems will help the students to review decimals number concepts.

    Read More

  5. Multiplication Table of 4 |Read and Write the Table of 4|4 Times Table

    Apr 26, 25 01:00 PM

    Multiplication Table of Four
    Repeated addition by 4’s means the multiplication table of 4. (i) When 5 candle-stands having four candles each. By repeated addition we can show 4 + 4 + 4 + 4 + 4 = 20 Then, four 5 times

    Read More