Question

(a) compare the temperatures of city a and city b using <, >, or =.
81 - 11
what is the meaning of the inequality above?
at 6 a.m., city b was warmer than city a.
at 6 a.m., city b was colder than city a.
(b) compare the temperatures of city c and city e using <, >, or =.
5 - 23
what is the meaning of the inequality above?
at 6 a.m., city c was warmer than city e.
at 6 a.m., city c was colder than city e.

Explanation:

Step1: Compare 81 and -11

Positive numbers are greater than negative numbers. So, \(81>-11\). This means City A (temperature \(81^{\circ}F\)) is warmer than City B (temperature \(-11^{\circ}F\)), or City B is colder than City A.

Step2: Compare 5 and -23

Again, positive numbers are greater than negative numbers. So, \(5 > - 23\). This means City C (temperature \(5^{\circ}F\)) is warmer than City E (temperature \(-23^{\circ}F\)).

Answer:

(a) \(81> - 11\), At 6 a.m., City B was colder than City A.
(b) \(5>-23\), At 6 a.m., City C was warmer than City E.