Solve.A certain amount of money saved for 1 year at a certain annual interest rate (simple interest) yielded $6.45 in interest. If we had added $86 to the principal and reduced the interest rate by 2 percentage point(s), the interest would have been the same. Find the principal and the rate.
A. $642.00, 5%
B. $8.66, 7.45%
C. $129.00, 5%
D. $642.00, 3%
Answer: C
Mathematics
You might also like to view...
Translate to a proportion and solve. 36% of what is 72?
A. 50 B. 200 C. 0.5 D. 2000
Mathematics
Solve. Then graph the solution.
? 0
A. 
B. 
? (2, ?)
C. 
? [2, ?)
D. 
Mathematics
Solve the system, if possible.
?
?
?
A. x = -10, y = -3, z = -7 B. x = 10, y = 3, z = 7 C. x = -2, y = -10, z = 7 D. x = -13, y = -6, z = 7 E. no solution; inconsistent system
Mathematics
Graph the equation.y = x + 5
A. 
B. 
C. 
D. 
Mathematics