Algebra - Quadratic Equation Word Problems
Not what you're looking for?
1:The outside of a frame measures 14 in by 20 in. 224 in^2 of the picture shows. Find the thickness of the frame?
2:The outside of a frame measures 11 in by 12 in. 30 in^2 of the picture shows. Find the thickness of the frame?
3: A car travels 910 mi at a certain speed. if the speed had been 5 miles per hour faster, the trip would have been made in 1 hr less. Find the speed.
Purchase this Solution
Solution Summary
Complete, Neat and Step-by-step Solutions are provided.
Solution Preview
(1) Let the frame thickness be x inches. Then the picture has a width of 20 - 2x inches and a height of 14 - 2x inches
Area = (20 - 2x)(14 - 2x) = 224
280 - 68x + 4x^2 - 224 = 0
4x^2 - 68x + 56 = 0
x^2 - 17x + 14 = ...
Purchase this Solution
Free BrainMass Quizzes
Know Your Linear Equations
Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.
Graphs and Functions
This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.
Probability Quiz
Some questions on probability
Multiplying Complex Numbers
This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.
Geometry - Real Life Application Problems
Understanding of how geometry applies to in real-world contexts