Final answer:
Using the provided information, we deduced through a system of equations that Jake invested $5,000 in the first venture, $3,000 in the second venture, and $7,000 in the third venture.
Step-by-step explanation:
Jake has decided to invest in three business ventures, which costs a total of $15,000. To determine the amount Jake invested in each venture, we can set up a system of equations based on the information provided. Let's denote the amount invested in the first, second, and third venture as x, y, and z respectively.
We have three key pieces of information to form our equations:
- The total investment is $15,000: x + y + z = 15,000.
- The combined investment in the first and third ventures is $7,000 more than the investment in the second venture: x + z = y + 7,000.
- After three years, the investment value will be $39,000 with the first investment tripling and the other two doubling: 3x + 2y + 2z = 39,000.
By solving this system of equations, we find that x = $5,000, y = $3,000, and z = $7,000. Therefore, Jake's investment in the first venture is $5,000, in the second venture is $3,000, and in the third venture is $7,000. These correspond to the given options as Option 2, $5,000 for the first venture.