Math Problem Statement
A product has a linear demand function and a linear supply function. It is known that when the price of a product = P (in $/ton), the quantity demanded will equals to Qd (in tons), and the quantity supplied will equals to Qs (in tons). The detailed information can be seen below.
P ($/ton) Qd (tons) Qs (tons)
10.00 1.87 3.09
5.00 2.37 2.01
Calculate the quantity demanded (tons) when the price is $8.9 /ton. (Notes: Use 4 digits after decimal point)
Solution
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Math Problem Analysis
Mathematical Concepts
Linear Equations
Algebra
Formulas
Qd = m_d * P + b_d (Demand Function)
Slope formula: m_d = (Qd2 - Qd1) / (P2 - P1)
Theorems
Linear Equation Theorem
Suitable Grade Level
Grades 9-11
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