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Cool Down: Flight of the Albatross

An albatross is a large bird that can fly 400 kilometers in 8 hours at a constant speed. Using [tex]d[/tex] for distance in kilometers and [tex]t[/tex] for number of hours, an equation that represents this situation is [tex]d = 50t[/tex].

1. What are two constants of proportionality for the relationship between distance in kilometers and number of hours? What is the relationship between these two values?


Sagot :

Certainly! Let's break down the problem and find the constants of proportionality along with their relationship.

Given:
- An albatross can fly 400 kilometers in 8 hours at a constant speed.
- The equation representing this situation is [tex]\( d = 50t \)[/tex], where [tex]\( d \)[/tex] is the distance in kilometers and [tex]\( t \)[/tex] is the number of hours.

1. Two Constants of Proportionality:

- Speed of the albatross:
The speed can be derived from the distance-time relationship. According to the equation [tex]\( d = 50t \)[/tex], where speed is defined as the distance traveled per unit time.

So, speed [tex]\( s \)[/tex] is [tex]\( 50 \)[/tex] kilometers per hour.

- Inverse of the Speed:
The inverse of the speed is also a constant of proportionality. This represents the time taken to cover one kilometer. We can compute it as follows:

[tex]\[ \frac{1}{\text{speed}} = \frac{1}{50} \text{ hours per kilometer} ~~~ \text {or ~} 0.02 \text{ hours per kilometer} \][/tex]

2. Relationship Between These Two Values:

- The speed [tex]\( s \)[/tex] is [tex]\( 50 \)[/tex] kilometers per hour.
- The inverse of this speed, which is [tex]\( \frac{1}{s} \)[/tex], is [tex]\( \frac{1}{50} = 0.02 \)[/tex] hours per kilometer.

The relationship between these two values is that speed and its inverse are reciprocal of each other. This means that:

[tex]\[ 50 \times 0.02 = 1 \][/tex]

Hence, if you multiply the speed by its inverse, the product is always 1. This indicates that they are indeed reciprocal values.

In conclusion:

- The two constants of proportionality are [tex]\( 50 \)[/tex] kilometers per hour and [tex]\( 0.02 \)[/tex] hours per kilometer.
- These two values are in a reciprocal relationship, meaning that each is the inverse of the other.