Answer:
40 km/h
Step-by-step explanation:
rate of change of distance = speed
speed = distance/time
speed = (400 km)/(10 h)
speed = 40 km/h
Answer:
The diameter of an atom is 25000 times the diameter of a pearl.
Step-by-step explanation:
Given that,
The diameter of a pearl is 
The diameter of an atom is 
Taking the ratio,

So, the diameter of an atom is 25000 times the diameter of a pearl.
You have to convert 117.46 meters to feet. so you know that 0.3048 meters is 1 foot.
117.46 / 0.3048= 385.37feet red kite
now you can simply subtract
385.37-362.26=23.11ft
the answer is, the red kite has an altitude 23.11 feet higher then the black kite.
Answer:
x=1
Step-by-step explanation:
8+2x-7x=5(x-3)-2(6x-8)
8+2x+7x=5x-15-12x+16
8+15-16=5x-12x-3x-7x
23-16=-7x-3x-7x
17=-17x
x=1