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6 July, 05:30

Mario and Luigi have friends. They want to purchase some extra controllers. Each controller costs $29.99.

Use an algebraic expression to describe how much they spend in total, before sales tax, based on purchasing the console, the number of games, and the number of extra controllers.

console = 299.00

games = 59.99

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  1. 6 July, 05:57
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    An algebraic expression is a phrase in mathematics that consists of numbers such as 1,2,3 and the like, variables which are represented with letters and operations like addition, multiplication, subtraction and division. It is usually used to represent a certain situation which would relate the variables involved. To write the algebraic expression for the problem statement above, we do as follows:

    Let x = number of consoles to be bought

    y = number of games to be bought

    z = number of controllers to bebought

    C = total cost of all

    The total cost would be equal to the sum of the price multiplied by the number of consoles, games and controllers bought. We write the algebraic expression as follows,

    C = 299x + 59.99y + 29.99z
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