Question

What is the value of s in the equation 3 r equals 10 plus 5 s, when r equals 10?

A. 4
B. 8
C. 100
D. 200

Answer 1

A. 4

if r = 10 then that will be 30 because it’s 3 r meaning 3 times whatever r is (10 in this case)
and if 10 plus 5s is equivalent to 3 r which is 30, s will have to be 4 because 5 times 4 is 20 and 20 plus 10 is 30.