Match the terms to their definition. Test problem
variable
a letter or symbol used to represent
an unknown
2. substitution
a mathematical expression
containing one or more variables
replacing a quantity with its equal
3. algebraic expression
4. evaluate
to find the numerical value of
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How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?

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