Question

Which equation is not equivalent to the formula d = rt?

A. r = t/d

B. r = d/t

C. t = d/r

D. d = tr

Answer 1

- DELETED ANSWER, FORGOT PARTS -

Answer 2

B
is fine you just write d = r*t and then divide both sides by t to get d/t = r

C
is fine as well. You need only divide both sides by r to get
r*t = d

rt/r = d/r
t = d/r

D
D is fine. All you have done is interchanged r and t. That's called the associative property of multiplication.

A
is the one that is not correct.

A <<<< Answer