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A residential building contractor borrowed $30,000 to complete a new home. Some of the money was borrowed at 5%, some at 6%, and some at 8%. How much was borrowed at each rate if the annual interest owed was $1780 and the amount borrowed at 6% is four times more than the amount borrowed at 8%?
Fluid Abilities
Mental skills that involve the ability to reason quickly and think abstractly, which tend to decline with age.
Expert Problem Solving
The capacity to effectively address and find solutions to complex problems, often developed through extensive experience or knowledge in a specific area.
Encapsulation
In Hoyer’s terminology, the process that allows expertise to compensate for declines in information-processing ability by bundling relevant knowledge together.
Mature Thinking
The development of complex, abstract, and critical thought processes that allow for greater understanding and problem-solving abilities.
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