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Novosadov [1.4K]
2 years ago
13

If a bus covers a distance of 428.5 km in 8 hours,find the speed of the bus​

Mathematics
1 answer:
Romashka [77]2 years ago
5 0

Answer:

53.525kmh^-1

Step-by-step explanation:

average speed=total distance/total time taken

=428.5km/8h

=53.525kmh^-1

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Answer:

Step-by-step explanation:

Trying to factor as a Difference of Squares :

1.1      Factoring:  r2-96

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

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Equation at the end of step  1  :

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Step  2  :

Solving a Single Variable Equation :

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Add  96  to both sides of the equation :

                     r2 = 96

When two things are equal, their square roots are equal. Taking the square root of the two sides of the equation we get:  

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Can  √ 96 be simplified ?

Yes!   The prime factorization of  96   is

  2•2•2•2•2•3

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√ 96   =  √ 2•2•2•2•2•3   =2•2•√ 6   =

               ±  4 • √ 6

The equation has two real solutions  

These solutions are  r = 4 • ± √6 = ± 9.7980  

Two solutions were found :

                  r = 4 • ± √6 = ± 9.7980

Processing ends successfully

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