Translate to a proportion and solve. Round to the nearest hundredth, if necessary.12 is what percent of 50?
A. 24%
B. 2,400%
C. 0.24%
D. 2.4%
Answer: A
Mathematics
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Use a graphing calculator to solve the equation to the nearest tenth.5m2 + 12m + 5 = 0
A. 0.4, -2.8 B. -0.5, -1.9 C. -0.3, -0.9 D. -1.7, -3.1
Mathematics
Solve the system of equations by determinants. 4w - 5y + z = -19-w + 4x + y - 4z = -14w - x + + 5z = 1 x - 4y - z = -21
A. w = 1, x = -3, y = -7, z = -2 B. w = -3, x = 2, y = 7, z = -3 C. w = 2, x = -3, y = 5, z = -2 D. w = 1, x = -1, y = -5, z = 0
Mathematics
Find the mean.18, 25, 67, 47, 124, 78
A. 71.8 B. 60.3 C. 59.3 D. 59.8
Mathematics
A doctor tells you to inject 2.0cc of a vaccine into a patient. How many milliliters is this?
A. 2mL B. 20mL C. 2.0mL D. cannot be converted
Mathematics