Answer:
1. Its constant speed is 550 miles per hour.
2. Time taken to fly from Albuquerque to Phoenix is [tex]\frac{3}{5}[/tex] hours (36 minutes).
Step-by-step explanation:
Speed = [tex]\frac{distance}{time}[/tex]
a. Its speed from Pittsburgh to Saint Louis can be calculated by;
speed = [tex]\frac{550}{1}[/tex]
= 550 miles/hour
b. Its speed from Saint Louis to Albuquerque can be determined by;
42 minutes = [tex]\frac{42}{60}[/tex] hours
= [tex]\frac{7}{10}[/tex] hours
so that time taken = 1[tex]\frac{7}{10}[/tex] hours
speed = [tex]\frac{935}{1\frac{7}{10} }[/tex]
= [tex]\frac{9350}{17}[/tex]
= 550 miles/hour
c. From Albuquerque to Phoenix, let the time be represented by t. We have;
speed = [tex]\frac{330}{t}[/tex]
since the speed is constant, then'
550 = [tex]\frac{330}{t}[/tex]
⇒ t = [tex]\frac{330}{550}[/tex]
= [tex]\frac{3}{5}[/tex]
Thus, time taken to fly from Albuquerque to Phoenix is [tex]\frac{3}{5}[/tex] hours (36 minutes).
