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MATH SOLVE
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If 20 percent of 40 percent of a number is 10 greater than half the number, what is the number?A. -5...
5 months ago
Q:
If 20 percent of 40 percent of a number is 10 greater than half the number, what is the number?A. -500/21B. -500/3C. 200D. 200/21E. 210
Accepted Solution
A:
0.2*0.4n = 0.5n + 10
0.08n = 0.5n + 10
-0.42n = 10
n = 10/-0.42
n = -500/21