Answer:
240
Step-by-step explanation:
Answer:
Step-by-step explanation:
Answer:
prop they're constant inchangeb
Step-by-step explanation:
Answer: $12000 was invested at 7% while $8000 was invested at 9%.
Step-by-step explanation:
Based on the information given in the question, let the amount that was invested at 7% be n.
Therefore,
0.07n + 0.09(20000 - n) = 1560
0.07n + 1800 - 0.09n = 1560
-0.02n = 1560 - 1800
-0.02n = -240
n = 240/0.02
n = 120
Therefore, $12000 was invested at 7% while $8000 was invested at 9%.
Answer: Equation 3
Step-by-step explanation:
It does not have any exponents, meaning it's linear
