Let the amount that the man placed in the first investment be
. Then, the amount that he placed in the second investment has to be
. Using those as the investment amounts, the total profit is given by adding the two separate profits as shown:
We can now solve for x:
Thus,
First investment:
Second investment:
6 to the power of three is 216.
Answer:
A
Step-by-step explanation:
Given
x² = 16 ( take the square root of both sides )
= ± ← note plus or minus sign
x = ± 4
Since 4² = 4 × 4 = 16 and
(- 4)² = - 4 × - 4 = 16
Answer:
Step-by-step explanation:
A bag contains 8 red marbles, 3 blue marbles and 7 green marbles.
Total = 18 marbles.
Probability of drawing three red marbles = probability of drawing one red without replacement + probab of drawing another without reeplacement + probab of drawing a third without replacement.
Probability of drawing three red marbles = 8/18 + 7/17 + 6/16 = 0.4444 + 0.4118 + 0.3750 = 1.2312.