alleryStart learning →Equations containing rational expressions are used to model:
AOnly pure theory
BOnly whole numbers
COnly prime numbers
DReal situations
Answer & Solution
Correct answer: D. Real situations
1. Rational equations have practical uses.
2. Rational expressions appear in applied problems.
3. Rational equations are used to model situations like these.
4. Work-rate and mixture problems are typical examples.
_Source: OpenStax Elementary Algebra 2e (CC BY 4.0), Ch 8 'Rational Expressions and Equations', sections 8.1-8.9_
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