Answer:
The temperature at 11:00 a.m. is 14 °F
Step-by-step explanation:
Let us list the information in the question
→ The temperature at 7:00 a.m. is - 7 °F
→ The temperature increases 21 °F during 4 hours
→ We need to find the temperature at 11:00 a.m.
∵ The temperature increases 21 °F during 4 hours
∵ The time 4 hours after 7: 00 a.m. is 11:00 a.m.
→ That means add 21 °F to - 7 °F to find the temperature at 11:00 a.m.
∴ The temperature at 11:00 a.m. = -7 °F + 21 °F
∴ The temperature at 11:00 a.m. = 14 °F
The temperature at 11:00 a.m. is 14 °F
