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Considering the definition of an equation, the total cost is 0.50a + 3b.
An equation is the equality existing between two algebraic expressions connected through the equals sign in which one or more unknown values, called unknowns, appear in addition to certain known data.
The members of an equation are each of the expressions that appear on both sides of the equal sign while the terms of an equation are the addends that form the members of an equation.
Being
and knowing that:
the equation that represents the total cost is:
total cost= 0.50a + 3b
Finally, the total cost is 0.50a + 3b.
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