Last Week on an Algebra Test, the Highest Grade Was

question 284

Multiple Choice

Last week on an algebra test, the highest grade was 20 points less than 4 times the lowest grade. The sum of the two grades was 90. Find the lowest and highest grades on the test.

• A) 68, 22
• B) 158, 22
• C) 68, 42
• D) 68, 26

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Definitions:

Mental Representation

Internal images, symbols, or concepts used to understand the world, remember information, and solve problems.

Sensorimotor Substage

A phase in Jean Piaget's theory of cognitive development, occurring from birth to approximately age 2, where infants learn through interacting with their environment using their senses and motor actions.

Secondary Circular Reactions

Repetitive actions in infant development focused on external objects, forming part of Piaget's sensorimotor stage.

Tertiary Circular Reactions

The stage in infant development, according to Piaget, characterized by the purposeful adaptation of established schemes to new situations.