Higher
Change the subject where the unknown appears twice in an algebraic fraction
Higher
Change the subject where the unknown appears twice in an algebraic fraction
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Lesson details
Key learning points
- In this lesson, we will be changing the subject of a formula in which the unknown appears twice, involving algebraic fractions.
Licence
This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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3 Questions
Q1.
Make t the subject of the formula.
![An image in a quiz](/_next/image?url=https%3A%2F%2Foaknationalacademy-res.cloudinary.com%2Fimage%2Fupload%2Fv1707166202%2Fjv3t9qwrycix81xzrevl.png&w=1200&q=75)
A
C
D
Q2.
Make b the subject of the formula.
![An image in a quiz](/_next/image?url=https%3A%2F%2Foaknationalacademy-res.cloudinary.com%2Fimage%2Fupload%2Fv1707166205%2Fbz8wg88pphnfn7u1doxo.png&w=1200&q=75)
A
C
Q3.
Make x the subject of the formula.
![An image in a quiz](/_next/image?url=https%3A%2F%2Foaknationalacademy-res.cloudinary.com%2Fimage%2Fupload%2Fv1707166217%2Foabqkyaag0mqjdgefcse.png&w=1200&q=75)
B
C
3 Questions
Q1.
Make x the subject of the formula.
![An image in a quiz](/_next/image?url=https%3A%2F%2Foaknationalacademy-res.cloudinary.com%2Fimage%2Fupload%2Fv1707168394%2Fdf1gz5bkafhk8eofzngd.png&w=1200&q=75)
B
C
Q2.
Make r the subject of the formula.
![An image in a quiz](/_next/image?url=https%3A%2F%2Foaknationalacademy-res.cloudinary.com%2Fimage%2Fupload%2Fv1707168399%2Fxbwb1sf6uzhxwm95vqnc.png&w=1200&q=75)
A
C
Q3.
Make n the subject of the formula.
![An image in a quiz](/_next/image?url=https%3A%2F%2Foaknationalacademy-res.cloudinary.com%2Fimage%2Fupload%2Fv1707168401%2Fogqzppojyhbv2b3115cm.png&w=1200&q=75)
A
B