Math Problem Statement

A rectangle has a length of (5+2x) inches and a width of 10 inches. A triangle has a base of 30 inches and a height of (4x-10) inches. The area in square inches of the rectangle is equal to the area in square inches of the triangle.

What is the value of x? A.2.5 B.3 C.7.5 D.5

Solution

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Math Problem Analysis

Mathematical Concepts

Geometry
Algebra
Area Calculation

Formulas

Area of a rectangle = Length × Width
Area of a triangle = (1/2) × Base × Height

Theorems

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Suitable Grade Level

Grades 8-10