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Nitella [24]
3 years ago
10

A pot of water is being heated up the temperature of the water can be modeled by this equation with y representing the temperatu

re in degrees Fahrenheit and d representing the time in minutes that the water has be on the stove
y = 9.5x + 62.1
After how many minutes will the temperature of the water be 138.1 Fahrenheit?
|?| Minutes
Mathematics
1 answer:
NNADVOKAT [17]3 years ago
4 0

Answer:

8 minutes

Step-by-step explanation:

To answer this, set the function y = 9.5x + 62.1 = to 138.1 and solve the resulting equation for x:

9.5x + 62.1 = 138.1

We must isolate x.  Start this process by subtracting 62.1 from both sides of this equation, obtaining:

9.5x = 76

Now divide both sides of this equation by 9.5:

x = 76/9.5 = 8

The water  reaches 138.1 degrees F after 8 minutes.

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