Answer:
It will take 17.5 minutes to reach 50 degrees F.
Step-by-step explanation:
Current temperature = -13 degrees F
With the engine on, the temperature goes up by 3.6°F per minute.
Let us assume that it takes x minutes to reach 50 degrees F.
So, the time taken will be =
[tex]-13+3.6(x)=50[/tex]
=> [tex]3.6x=50+13[/tex]
=> [tex]3.6x=63[/tex]
x = 17.5 minutes
The expression that tells how much the temperature needs to change from -13°F to 50°F is : [tex]-13+3.6(x)=50[/tex]
It will take 17.5 minutes to reach 50 degrees F.
Answer:
Which expression tells how much the temperature needs to change from -13°F to 50°F?
50 - ( -13 )
Which expression tells how long it will take for the temperature to change?
50 - ( -13 ) ÷ 3.6
How much time will it take for the temperature to change?
17.5 minutes
