Question

the table gives the temperature (in °f) in five cities at 6 a.m. on the same day. use the table to answer the questions.
city\ttemperature (°f)
montreal\t-15
buffalo\t-8
atlanta\t62
fairbanks\t-28
st. louis\t37
(a) by noon, the temperature in buffalo had risen by 17°f. what was the temperature there at noon?
(b) how much higher was the 6 a.m. temperature in atlanta than in montreal?

Explanation:

Step1: Find 6 - a.m. temperatures

The 6 - a.m. temperature in Atlanta is $62^{\circ}F$ and in Montreal is $- 15^{\circ}F$.

Step2: Calculate the difference

To find how much higher the 6 - a.m. temperature in Atlanta is than in Montreal, we subtract the Montreal temperature from the Atlanta temperature: $62-(-15)=62 + 15$.
$62+15 = 77$.

Step3: Find noon - temperature in Buffalo

The 6 - a.m. temperature in Buffalo is $-8^{\circ}F$ and it rises by $17^{\circ}F$ by noon. So we add the rise to the 6 - a.m. temperature: $-8 + 17$.
$-8+17=9$.

Answer:

(a) $9^{\circ}F$
(b) $77^{\circ}F$