Question

1. Palawan (Latitud) (Longtitud) 2. Baguio (Latitud) (Longtitud) 3. Maynila (Latitud) Longtitud) 4. Baler (Latitud) (Longtitud) 5. Guimaras (Latitud) (Longtitud) 6. Batangas (Latitud) (Longtitud)

Answer 1

Answer:-

Let x=a+b and y=a−b . ( b>0 since x>y )

Then 30=x+y=(a+b)+(a−b)=2a which implies a=15 .

We also know 144=xy=(a+b)(a−b)=(15+b)(15−b)=225−b2 .

That gives b2=225–144=81 which implies b=9 .

Then x−y=(a+b)−(a−b)=2b=18

hope it helps ✅✅✅

#MichAditi✨✌️

Answer 2

Answer:

Let the total distance be d.

Time taken for the first half half distance is t

1

=

2v

1

d

Time taken for the second half of the distance is t

2

=

2v

2

d

Mean velocity =

total time

total distance

v

mean

=

2v

2

d

+

2v

1

d

d

v

mean

=

v

1

+v

2

2v

1

v

2

⇒

v

mean

2

=

v

1

1

+

v

2

1

Given, v

mean

=v

⇒

v

2

=

v

1

1

+

v

2

1