Write an equation to represent this situation: "Twenty times the cost of a record, increased by...

Question:

Write an equation to represent this situation:

"Twenty times the cost of a record, increased by eighty-nine cents."

Word problems:

Word problems exemplify the idea that math is another language. Since math is another language, then word problems are like translating from one language to another. It requires understanding what is stated.

Answer and Explanation:

In the situation, "Twenty times the cost of a record...", use {eq}x {/eq} to represent the cost of a record and the phrase as a mathematical expression is:

{eq}20x {/eq}.

The phrase "...increased by 89 cents." uses the operation of addition and as a mathematical expression, with the assumption that the price of the record is in dollars, would be:

{eq}+ 0.89 {/eq}

The mathematical expression of "Twenty times the cost of a record, increased by eighty-nine cents." would be:

{eq}20x + 0.89 {/eq}.


Learn more about this topic:

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Solving Word Problems with Algebraic Addition Expressions

from 6th-8th Grade Math: Practice & Review

Chapter 32 / Lesson 8
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