Question 2
Number BasesIf 55x + 52x = 7710, find x.
- A.5
- B.6
- C.7
- D.10
Show the answer and explanation
Answer: C (7)
Explanation
(5x + 5) + (5x + 2) = 77 gives 10x = 70, so x = 7.
If 55x + 52x = 7710, find x.
Answer: C (7)
(5x + 5) + (5x + 2) = 77 gives 10x = 70, so x = 7.