Solve the problem.Roberto invested some money at 7%, and then invested $2000 more than twice this amount at 12%. His total annual income from the two investments was $3960. How much was invested at 12%?
A. $26,000
B. $24,000
C. $2600
D. $6000
Answer: A
Mathematics
You might also like to view...
Determine the symmetries of the curve.r2 = -9 cos 4?
A. x-axis, y-axis, origin B. No symmetry C. x-axis only D. Origin only
Mathematics
Describe the graph of the polar equation. r2sin 2? = 50
A. Hyperbola with the x- and y-axes as asymptotes B. Hyperbola with asymptotes y = ±25x C. Parabola centered at the origin opening to the right D. Parabola centered at the origin opening upward
Mathematics
Find the limit.
(12 - 10x)
A. -58 B. 58 C. 82 D. -82
Mathematics
Use a graphing utility to find or approximate the x-intercepts of the graph of the quadratic function.y = x2 + 6x + 8
A. (12, 0), (-4, 0)
B. (-2, 0), (-4, 0)
C. (
, 0) (- 
, 0)
D. (2, 0), (4, 0)
Mathematics