Question

Given that r cannot equal 0 and r=5w=7a, find the value of r-w in terms of a

Answer 1

Answer:

Value of r-w in terms of a is:

r-w= $\dfrac{28}{5}a$

Step-by-step explanation:

We are given that:

r=5w=7a

We have to find the value of r-w in terms of a

r-w=5w-w   (Since r=5w)

    = 4w

   = $4\times \dfrac{7}{5}a$   (Since, 5w=7a)

   =$\dfrac{28}{5}a$

Hence, Value of r-w in terms of a is:

r-w= $\dfrac{28}{5}a$

Answer 2

Just substitute from given equation r-w=7a-7a/5= 28a/5