Being 250 meters apart, two puppies started running towards each other at the same time. the first puppy ran 1.5 meter per second, while the second one ran 2.5 meters per second. what was the distance between them in half a minute?

130 meters

Step-by-step explanation:

Puppy 1

d=rt

We know the rate = 1.5 m/s  and the time = 1/2 minute = 30 seconds

d = 1.5 * 30 = 45 meters

Puppy 2

d=rt

We know the rate = 2.5 m/s  and the time = 1/2 minute = 30 seconds

d = 2.5 * 30 = 75 meters

The puppies ran a total of 75+45 = 120 meters

The total distance was 250

250-120 = 130

There was still a gap of 130 meters between the puppies.

sine

step-by-step explanation:

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl