Grace already owns 27 hair bands, and additional hair bands are priced at 1 for a dollar.
1 answer:
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Answer:
9 cows and 25 chicken
Step-by-step explanation:
First two lines
w + k = 34 1
4w + 2k = 86 2
Given:
The function that represents how the amount of fuel changes as a function of distance flown is
where x represents miles flown, and f(x) represents the amount of fuel remaining.
To find:
The rate of change for this scenario.
Solution:
The slope intercept form of a linear function is
...(i)
Where, m is the slope or rate of change and b is the y-intercept.
We have,
...(ii)
On comparing (i) and (ii), we get
Therefore, the rate of change for this scenario is -0.9. It means, the amount of fuel in the airplane is decreasing by 0.9 gallons per mile.