Answer: I think 13
Step-by-step explanation:
Hello!
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The answer is 16.
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Answer:
D.the product is negative
for example
2×-1
=-2
X - invested for the money at 11%
70 000 - x - deposited at 12%
0.11x + 0.12(70000-x)=7900
0.11x + 8400 - 0.12x = 7900
8400- 7900 = 0.01x
500 = 0.01x
x=50 000 invested at 11%
rest (20K) invested at 12%