question archive On a cold February morning, the radiator fluid in Stanley’s car is -18F
On a cold February morning, the radiator fluid in Stanley’s car is -18F
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On a cold February morning, the radiator fluid in Stanley’s car is -18F. When the engine is running, the temperature goes up 5.4 F per minute. Approximately how long will it take before the radiator fluid temperature reaches 80 F?
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Answer:
As per linear equation, It take 18.15 minutes for the radiator fluid temperature to reach 80 F.
What is a linear equation?
A linear equation is an equation that has the highest power of the variable of 1.
Given, the radiator fluid in Stanley’s car is -18 F.
The temperature goes up 5.4 F per minute.
Let, after 'x' minutes the radiator fluid temperature reaches 80 F.
Therefore, - 18 + 5.4x = 80
⇒ 5.4x = 98
⇒ x = 98/5.4
⇒ x = 18.15
