The climber descended 543 feet. She starts descending from 553 feet, and keeps descending until she reaches 10 feet. 553-10=543. To check the answer, add 10 to 543, which gets you 553.
make the denominators the same so you cancompare
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Answer:
"The sum of two rational numbers is rational."
By definition, a rational number can be expressed as a fraction with integer values in the numerator and denominator (denominator not zero). So, adding two rationals is the same as adding two such fractions, which will result in another fraction of this same form since integers are closed under addition and multiplication. Thus, adding two rational numbers produces another rational number.
