On a trolley ride around an amusement park, a child traveled from one signpost to a second signpost at a constant speed of 125 meters per minute. was the distance that the child traveled from the first signpost to the second signpost greater than 0.8 kilometer?

If a child took just one minute,  distance is less than 0,8 km

Step-by-step explanation:

speed= 125 m/min = 0,125 km/min,  

distance=0,8 km

time= 0,8 km / 0,125 km/min = 6,4 min.

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.