The change in the water temperature of a bottle of water when it dropped by 4 degrees every hour is 48 degrees
<h3>What is temperature?</h3>
Temperature can be defined as the hotness or coldness of a thing or place.
To calculate the change in water temperature after 12 hours, we use the formula below.
Formula:
- ΔT₁₂ = 12t'................ Equation 1
Where:
- ΔT₁₂ = Change in the water temperature after 12 hours
- t' = drop in temperature per hour
From the question,
⇒ Given:
Substitute into equation 1
- ΔT₁₂ = 12×4
- ΔT₁₂ = 48 degrees
Hence, the change in the water temperature is 48 degrees
Learn more about temperature here: brainly.com/question/24746268
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Answer:
235.71cm^2
Step-by-step explanation:
Volume of cone = 1/3 pie r^2 h
1/3*22/7*5*5*9
= 235.71cm^2
Find the volume of the cylinder, then the volume of the empty space. Finally, we subtract these.
V = pi * r^2 * h
V = 3.14 * 3^2 * 12
V = 339.12
So the volume of the bottle of lotion is 339.12.
V = pi * r^2 * h
V = 3.14 * 0.5^2 * 12
V = 9.42
So the volume of the empty space in the bottle of lotion is 9.42.
Subtract these:
339.12 - 9.42 = 329.7
Let's assume the cost 20 years ago equals x
3x - 3 = 75
or
x = 75 / 3 + 3
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