 # Mathematics Questions

Subject Mathematics Mathematics - Other

## Question

1. Skippy has a total of \$8,000 to split between two investments. One account offers 3 percent simple interest, and the other account offers 6 percent simple interest. For tax reasons, he can only earn \$400 in interest the entire year. How much money should Skippy invest in each account to earn \$400 in interest for the year?

2. Solve the system of linear equations, 3x + 8y = 10 and x − y = 4.

3. Solve the system of linear equations, x − 2y = 9 and x = 3.

4. Find the quadratic equation passing through the points (−1, −2), (−2, −1), and (0, −1).

5. A 8 percent salt solution is to be mixed with pure water to produce 40 gallons of a 1 percent salt solution. How much or each are needed?

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