Answer:
437500 Btu's of heat is produced in 3.5 hours.
Explanation:
Given that,
The Martins' oil furnace can produce 125,000 Btu's of heat in an hour.
We need to find heat produced in 3.5 hours.
1 hour = 125,000 Btu's of heat
For 3.5 hours,
3.5 hour = 3.5 × 125,000 Btu's of heat
= 437500 Btu's of heat
So, 437500 Btu's of heat is produced in 3.5 hours.
