Question

What is the value of the expression -1s/20r if r= -1/4 and s= 4/5?Simplify your answer.​

Answer 1

Answer:

$\frac{4}{25}$

Step-by-step explanation:

Given expression:

          $-\frac{1s }{20r}$  

   r  = $-\frac{1}{4}$ , s = $\frac{4}{5}$

Now;

     $-\frac{1s }{20r}$    = $-\frac{s}{20r}$

              Insert the parameters:

                = $-\frac{\frac{4}{5} }{20 x (-\frac{1}{4} )}$  

               = - $\frac{\frac{4}{5} }{-5}$  

              -x - = +

                = $\frac{4}{5}$ x $\frac{1}{5}$

                = $\frac{4}{25}$