SOLUTION: Hi if anyone can help me with one problem with my math hw, that would be great! The question is: The temperature of the soil is 30 degrees Celsius at the surface and decreases by

Question 1021118: Hi if anyone can help me with one problem with my math hw, that would be great! The question is:
The temperature of the soil is 30 degrees Celsius at the surface and decreases by 0.03 degrees Celsius for each centimeter below the surface. Express temperature T, in degrees Celsius, as a function of depth d, in centimeters, below the surface. Enter your answer as an equation with T on the left side, and an expression involving d on the right.
I tried these equations, but none of them seem correct.
d(t)=30+0.03
30t+0.03d
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
T for temperature and d for depth;
T as a function of d takes function symbolism, T(d).

T=30 when d=0. The dependent axis intercept point is (0,30).

You are given the rate of change, 0.03 degrees Celsius per centimeter, and this is DOWNWARD, so negative.

----Slope-Intercept Form!
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!

Hi if anyone can help me with one problem with my math hw, that would be great! The question is:
The temperature of the soil is 30 degrees Celsius at the surface and decreases by 0.03 degrees Celsius for each centimeter below the surface. Express temperature T, in degrees Celsius, as a function of depth d, in centimeters, below the surface. Enter your answer as an equation with T on the left side, and an expression involving d on the right.
I tried these equations, but none of them seem correct.
d(t)=30+0.03
30t+0.03d

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