Solve the equation: r - 8.7 = 39.65.

Question

A. r = 48.35
B. r = 30.95
C. r = 47.72
D. r = 47.35

Answer 1

The correct answer is: A. r = 48.35

To solve for r, add 8.7 to both sides of the equation:
r - 8.7 + 8.7 = 39.65 + 8.7
r = 48.35

Therefore, r = 48.35.

Answer 2

Are you 100% positive?
If not then give a correct answer.

Answer 3

Let's double-check the calculation:

r - 8.7 = 39.65

To find the value of r, add 8.7 to both sides of the equation:

r - 8.7 + 8.7 = 39.65 + 8.7
r = 48.35

Therefore, the correct answer is indeed A. r = 48.35.