Math

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IB Mathematics: Applications and Interpretation (SL)

Number and algebra

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<p>What is substitution in algebra?</p>

What is substitution in algebra?

Substitution is replacing a variable with a number or another expression to evaluate an expression.

<p>Substitution is replacing a variable with a number or another expression to evaluate an expression.</p>
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<p>How do you convert a fraction to a decimal?</p>

How do you convert a fraction to a decimal?

To convert a fraction to a decimal, divide the numerator by the denominator.

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Simplify 3/4 + 1/4

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What is the order of operations? (PEMDAS)

Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).