Transposition of Formulae Worksheet
This worksheet helps Grade 7 students practice transposing formulae to make a different variable the subject.
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Transposition of Formulae
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Read each question carefully and transpose the given formula to make the indicated variable the subject. Show your work.
1. Make 'x' the subject of the formula: y = x + 5
2. Make 'm' the subject of the formula: P = 2m
3. Make 'a' the subject of the formula: C = a - b
4. To make 'r' the subject of V = I * r, you would both sides by I, resulting in r = .
5. In the formula A = l * w, if you want to make 'l' the subject, you need to both sides by w, giving l = .
6. Which of the following correctly makes 'h' the subject of the formula A = bh?
h = A + b
h = A - b
h = A / b
h = A * b
7. If P = 2l + 2w, what is 'l' when it is made the subject?
l = P - 2w
l = (P - 2w) / 2
l = P / 2 + w
l = P + 2w - 2
8. Make 'x' the subject of the formula: y = 3x - 7
9. Make 't' the subject of the formula: d = vt
10. Make 'r' the subject of the formula: A = πr²
11. To make 'b' the subject of a = b/c, you multiply both sides by c.
True
False
12. If you have the formula F = ma, making 'a' the subject gives a = F - m.
True
False
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