OpenStax, Algebra and Trigonometry 2e §1.1 Real Numbers: Algebra Essentials · Exercise 60 · Algebra · Expressions
Real Numbers: Algebra Essentials · Exercise 60
Consider this scenario: There is a mound of pounds of gravel in a quarry. Throughout the day, 400 pounds of gravel is added to the mound. Two orders of 600 pounds are sold and the gravel is removed from the mound. At the end of the day, the mound has 1,200 pounds of gravel.
Write the equation that describes the situation.
OpenStax, Algebra and Trigonometry 2e · §1.1 Real Numbers: Algebra Essentials · Exercise 60
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