Question

Jamie was asked to make r the subject of the formula

Answer 1

Answer:

Assuming the formula below, the answer is:

      $r=\dfrac{12s}{12+t}$

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:

         $t=\dfrac{12(s-r)}{r}$

1. Apply multiplication property of the equalities: muliply both sides of the equality by r

       $t\times r=12(s-r)$

2. Apply distributive property on the right side

      $t\cdot r=12s-12r$

3. Addition property: ad 12r to both sides

       $t\cdot r+12r=12s$

4. Common factor r on the left side

        $r(12+t)=12s$

5. Division property of equalities: divide both sides by 12 + t

        $r=\dfrac{12s}{12+t}$