Answer:
You need to add 10 °C of heat.
Step-by-step explanation:
To find the quantity of heat in Celsius first we need to convert the units:
212 °F to °C (boiling point):
(1)
194 °F to °C:
(2)
Now we can find the quantity of heat that must be added by substrating equation (2) from (1):

Therefore, you need to add 10 °C of heat to boil water that is 90 °C.
I hope it helps you!
The account already has $278
If you add and then subract 278 then the value will be the same
Your answer is B
Hopw this helps
-GoldenWolfX✔
I think answer should be d. Please give me brainlest let me know if it’s correct or not okay thanks bye
Answer:
After 31 months, Desmond first have enough money to purchase a used car.
Step-by-step explanation:
Since we have given that
Saving per month for a used car = $25
Each month he is able to save = $5 more than the previous month
If we have $3000 to purchase a used car.
So, we need to find the number of months Desmond to have enough money.
Our sequence will be
25,30,35,..............3000
So, it becomes,
Months can't be negative, So,
n = 31 months.
Hence, After 31 months, Desmond first have enough money to purchase a used car.