### Question 1:
How much lower was the 6 a.m. temperature in Montreal than in Chicago?

[tex]\[ \_ \, ^\circ F \text{ lower} \][/tex]

By noon, the temperature in Chicago had risen by 12 °F. What was the temperature there at noon?

[tex]\[ \_ \, ^\circ F \][/tex]



Answer :

Sure, let's solve this problem step-by-step:

1. Determine how much lower the 6 a.m. temperature in Montreal was compared to Chicago:
- The temperature in Chicago at 6 a.m. was 25°F.
- The temperature in Montreal at 6 a.m. was 15°F.
- To find out how much lower the temperature in Montreal was, subtract the Montreal temperature from the Chicago temperature:
[tex]\[ 25°F - 15°F = 10°F \][/tex]
So, the temperature in Montreal at 6 a.m. was 10°F lower than in Chicago.

2. Calculate the temperature in Chicago at noon:
- The temperature in Chicago at 6 a.m. was 25°F.
- By noon, the temperature in Chicago had risen by 12°F.
- To find the temperature at noon, add the temperature rise to the 6 a.m. temperature:
[tex]\[ 25°F + 12°F = 37°F \][/tex]
So, the temperature in Chicago at noon was 37°F.

To summarize:

- The 6 a.m. temperature in Montreal was 10°F lower than in Chicago.
- The temperature in Chicago at noon was 37°F.