Solve the problem.Michael's bank contains only nickels, dimes, and quarters. There are 61 coins in all, valued at $4.75. The number of nickels is 3 short of being three times the sum of the number of dimes and quarters together. How many dimes are in the bank?
A. 45
B. 6
C. 10
D. 15
Answer: C
Mathematics
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Solve the problem.Find (fg)(x) given f(x) = 3x + 1 and g(x) = 5x2 - 3.
A. 15x3 - 9x2 + 5x - 3 B. 3x3 + 5x2 - 3 C. 15x3 + 5x2 - 9x - 3 D. 15x3 - 3
Mathematics
Solve the equation.3(x2 - 28) = 27x
A. {4, -3} B. {4, -7} C. {-4, 7} D. {3, -7}
Mathematics
Find the slope and y intercept of the graph of the equation.y = -4x + 6
A. Slope = 6, y intercept = -4 B. Slope = 4, y intercept = -6 C. Slope = -4, y intercept = 6 D. Slope = -6, y intercept = -4
Mathematics
Evaluate the expression for x = -2, y = 3, z = -4.6x - y2
A. -3 B. -18 C. 6 D. -21
Mathematics