The function [tex][tex]$h(t)=210-15t$[/tex][/tex] models the altitude of a hot air balloon over time [tex][tex]$t$[/tex][/tex], in minutes.

Explain what [tex][tex]$h(10)$[/tex][/tex] means in the context of the real-world scenario and how to find its value.



Answer :

Sure, I'd be happy to explain.

In this scenario, the function [tex]\( h(t) = 210 - 15t \)[/tex] models the altitude of a hot air balloon, where:
- [tex]\( h(t) \)[/tex] is the altitude of the hot air balloon in meters after [tex]\( t \)[/tex] minutes,
- [tex]\( 210 \)[/tex] meters is the initial altitude of the hot air balloon,
- [tex]\( 15 \)[/tex] meters per minute represents the rate at which the hot air balloon descends.

To understand what [tex]\( h(10) \)[/tex] means, let's break it down step by step:

1. Identify the function: [tex]\( h(t) = 210 - 15t \)[/tex].

2. Substitute [tex]\( t = 10 \)[/tex] into the function: We need to find [tex]\( h(10) \)[/tex], which is the altitude of the hot air balloon after 10 minutes.

3. Perform the calculation:
[tex]\[ h(10) = 210 - 15 \times 10 \][/tex]

4. Simplify the expression:
[tex]\[ 15 \times 10 = 150 \][/tex]
Therefore,
[tex]\[ h(10) = 210 - 150 \][/tex]

5. Calculate the result:
[tex]\[ h(10) = 60 \][/tex]

In the context of this real-world scenario, [tex]\( h(10) = 60 \)[/tex] means that after 10 minutes, the altitude of the hot air balloon is 60 meters above the ground.