Question

Solve the equation below 0.3r = 2.1

A. r = 0.7

B. r = 1.8

C. r = 7

D. r = 18

Answer 1

C is correct. because r=2.1/.3 is 21/3 and it is 7.
hopes this loves.

Answer 2

Isolate the r - divide 0.3 from both sides

0.3r = 2.1
(0.3r)/0.3 = (2.1)/0.3
r = (2.1)/0.3
r = 7

C. r = 7 is your answer

hope this helps