Answer :
Answer:
Assuming the formula below, the answer is:
[tex]r=\dfrac{12s}{12+t}[/tex]
Explanation:
I can teach you how to make r the subject of a formula, with an example.
Other similar question asks to make r the subject of this formula:
[tex]t=\dfrac{12(s-r)}{r}[/tex]
1. Apply multiplication property of the equalities: muliply both sides of the equality by r
[tex]t\times r=12(s-r)[/tex]
2. Apply distributive property on the right side
[tex]t\cdot r=12s-12r[/tex]
3. Addition property: ad 12r to both sides
[tex]t\cdot r+12r=12s[/tex]
4. Common factor r on the left side
[tex]r(12+t)=12s[/tex]
5. Division property of equalities: divide both sides by 12 + t
[tex]r=\dfrac{12s}{12+t}[/tex]