Solve the problem.For a fixed amount of principal, the simple interest varies jointly with the rate and the time. If the simple interest is $1200 when the rate is 4% and the time is 6 years, find the simple interest when the rate is 5% and the time is 10 years.
A. $5000
B. $2500
C. $2750
D. $250
Answer: B
Mathematics
You might also like to view...
Solve the problem.A reflecting telescope has a mirror shaped like a paraboloid of revolution. If the distance of the vertex to the focus is 34 feet and the distance across the top of the mirror is 78 inches, how deep is the mirror in the center?
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Mathematics
Write the improper fraction as a mixed or whole number.
A. 17
B. 
C. 15
D. 16
Mathematics
Solve the equation.-7b + 7 + 5b = -3b + 12
A. 5 B. -12 C. 12 D. -7
Mathematics
Solve for the indicated variable.P = 2L + 2W for L
A. L = 
B. L = 
C. L = P - W
D. L = d - 2W
Mathematics