Answer:

• 10 hours if the speed is 25 km per hour
• 6 hours and 15 minutes if the speed is 40 km per hour
• 5 hours if the speed is 50 km per hour, and
• y= 250/s or f(s)= 250/s best describes for function.

Step-by-step explanation:

In mathematics, function define as a relation that associates for each element of a set x (domain of the function), to a single element of a set y (range of the function). In every input of value to x, there is corresponding value for an output to y.

Solution:

Let

y is the number of hours traveled

s is the speed

For 25 kilometers per hour

y= 250 ÷ s

y= 250 ÷ 25

y= 10 hours

For 40 kilometers per hour

y= 250 ÷ s

y= 250 ÷ 40

y= 6.25 hours,

0.25(60)= 15 minutes

y= 6 hours and 15 minutes

For 50 kilometers per hour

y= 250 ÷ s

y= 250 ÷ 50

y= 5 hours

For function (s)

y= 250 ÷ a

y= 250/s

or f(s) = 250/s

(sorry kung mahaba hehe its the solution)

Step-by-step explanation:

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Answer:

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