Solve the problem.The perimeter of a rectangle is 78 m. If the width were doubled and the length were increased by 25 m, then the perimeter would be 158 m. What are the dimensions?
A. Width: 15 m; length: 24 m
B. Width: 14 m; length: 19 m
C. Width: 19 m; length: 19 m
D. Width: 24 m; length: 15 m
Answer: A
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Solve the problem by writing and using a system of linear equations.Find the amount of a 11% saline solution a lab assistant should add to 60 cc (cubic centimeters) of a 21% saline solution in order to have a 14% solution.
A. 190 cc B. 10 cc C. 40 cc D. 140 cc
Evaluate the polynomial with the given replacement value.-9w2 - 10w - 8, w = -2
A. -24 B. 30 C. -34 D. -28
Find the prime factorization of the number.126
A. 2 ? 2 ? 3 ? 3 ? 7 B. 2 ? 3 ? 3 ? 7 C. 2 ? 3 ? 7 D. 14 ? 3 ? 3
Find all values of x satisfying the given conditions.y1 = 
, y2 = 
, y3 = 
, and the difference between 8 times y1 and 6 times y2 is the product of 10 and y3.
A. {26}
B. {-26}
C. {52}
D. {
}