jayahuewitt2008
Answered

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The change in altitude of a bird after 2 __ 1 2 seconds was –41 __ 1 4 feet. What was the average change in altitude of the bird in feet per second?

Sagot :

MrRoyal

Answer:

[tex]Average\ Change = -1\frac{7}{10} ft/s[/tex]

Step-by-step explanation:

Given

[tex]Altitude\ Change = -4\frac{1}{4} \ ft[/tex]

[tex]Time = 2\frac{1}{2}\ s[/tex]

Required

Determine the average change

This is calculated as follows:

[tex]Average\ Change = \frac{Altitude\ Change}{Time}[/tex]

This gives:

[tex]Average\ Change = \frac{-4\frac{1}{4}}{2\frac{1}{2}}[/tex]

[tex]Average\ Change = -4\frac{1}{4}/2\frac{1}{2}[/tex]

Convert to improper fractions

[tex]Average\ Change = -\frac{17}{4}/\frac{5}{2}[/tex]

Convert to multiplication

[tex]Average\ Change = -\frac{17}{4}*\frac{2}{5}[/tex]

[tex]Average\ Change = -\frac{17}{2}*\frac{1}{5}[/tex]

[tex]Average\ Change = -\frac{17}{10}[/tex]

[tex]Average\ Change = -1\frac{7}{10} ft/s[/tex]

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