Mathematics
NULL
Medium
Question
Subtracting 10% from X is the same as multiplying X by which number?
A
0.8
B
0.9
✓ Official correct answer
C
0.1
D
0.5
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
0.8
No member explanations yet for this option.
B
0.9
No member explanations yet for this option.
C
0.1
No member explanations yet for this option.
D
0.5
No member explanations yet for this option.
Explanation
X − 0.1X = 0.9X ⇒ multiply by 0.9.