Solve the equation. If the equation is an identity or a contradiction, state this.0.70x - 0.40(80 + x) = -0.25(80)
A. x = 40
B. x = 50
C. x = 20
D. x = 30
Answer: A
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Solve the application and answer with a complete sentence.Madison put $1848 in an account that gained interest at a rate of 14%. How much interest did the account gain after 16 months?
A. The account gained $258.72 after 16 months. B. The account gained $41,395.20 after 16 months. C. The account gained $4139.52 after 16 months. D. The account gained $344.96 after 16 months.
Translate the problem to a system of equations, then solve using Cramer's Rule.The perimeter of a rectangle is 24 meters. If the width is doubled and the length is tripled, the perimeter is 60 meters. Determine the original width and length.
A. width = 10 m, length = 20 m B. width = 8 m, length = 12 m C. width = 6 m, length = 6 m D. width = 12 m, length = 12 m
Two marbles are drawn without replacement from a box with 3 white, 2 green, 2 red, and 1 blue marble. Find the probability.The first marble is red and the second marble is white.
A. 
B. 
C. 
D. 
Find A, B, and C for the partial fraction decomposition.
= 
+ 
+ 
A. A = - 
, B = -1, C = 
B. A = - 
, B = 1, C = 
C. A = 
, B = -1, C = - 
D. A = 
, B = 1, C = - 