Purchase Solution

Writing Equations from Word Problems

Not what you're looking for?

Ask Custom Question

74. An algebraic equation is a complete sentence. It has a subject, a verb, and a predicate. For example, x + 2 = 5 can be written in English as "Two more than a number is five." Or. "A number added to two is five." Write an English version of the following equations. Be sure you write complete sentences and that the sentences express the same idea as the equations. Exchange sentences with another student, and see if your interpretations of each other's sentences result in the same equation.
(a) 2x?5=x+ 1 (b) 2(x+2)=14
(c)n+5=n/2 ?6 (d)7?3a=5+a

66. Write an algebraic equation for the English statement "Subtract 5 from the sum of x and 7 times 3 and the result is 20." Compare your equation with other students. Did you all write the same equation? Are all the equations correct even though they don't look alike? Do all the equations have the same solution? What is wrong? The English statement is ambiguous. Write another English statement that leads correctly to more than one algebraic equation. Exchange with another student and see if the other student thinks the statement is ambiguous. Notice that the algebra is not ambiguous!

Attachments
Purchase this Solution

Solution Summary

Writing Equations from word problems is investigated.

Solution Preview

Problem #74
(a) Twice of a number minus five is the number increased by 1.
(b) Twice of the sum of a number and two is fourteen.
(c) A number ...

Purchase this Solution


Free BrainMass Quizzes
Solving quadratic inequalities

This quiz test you on how well you are familiar with solving quadratic inequalities.

Geometry - Real Life Application Problems

Understanding of how geometry applies to in real-world contexts

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.

Probability Quiz

Some questions on probability

Exponential Expressions

In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.