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3 years ago

9

On a cold January morning, the radiator fluid in Christine’s truck is –13°F. With the engine on, the temperature goes up by 3.6°

F per minute. How long will it take the radiator temperature to reach 50°F?
Which expression tells how much the temperature needs to change from -13°F to 50°F?
Which expression tells how long it will take for the temperature to change?
How much time will it take for the temperature to change?

2 answers:

liubo4ka [24]3 years ago

6 0

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

2 years ago

No don't get it wrong the second one is actually wrong the answer is (50- (-13))) divided 3.6

2 years ago

i did his and got it wrong

faust18 [17]3 years ago

5 0

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 =

$-13+3.6(x)=50$

=> $3.6x=50+13$

=> $3.6x=63$

x = 17.5 minutes

The expression that tells how much the temperature needs to change from -13°F to 50°F is : $-13+3.6(x)=50$

It will take 17.5 minutes to reach 50 degrees F.

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