An airplane can fly 2340 miles per 5 hours. What is its unit rate?
A. 1/5 hours per mile
B. 5 miles per hour
C. 468 miles per hour
D. 11700 miles per hour
Answers
Answer:
Since there exists a direct relationship between the distance d traveled and the time t it takes to travel that distance: distance = rate (constant rate of travel or constant speed) times time, i.e., d = rt, we can solve our problem by setting up the following proportion based on r = d/t:
1,200 miles/2 hours = 3,300 miles/t
Cross multiplying, we get the following simple equation to solve for time t:
(1,200 miles)t = (3,300 miles)(2 hours)
Dividing both side by 1,200 miles, we get:
t = (3,300 miles)(2 hours)/(1,200 miles)
Dividing the number of miles in the numerator by the number of miles in the denominator and cancelling out the “miles” units, we get:
t = 2.75(2 hours)
Answer:
Answer:
Animals are adapted to survive in the conditions in which they live. Features and habits which help them to adapt to their surroundings are the result of evolution. So, to survive in a particular type of climate the animals must have certain adapted features. This is the reason we find animals of certain kind living in particular climatic conditions. For example, animals in the polar region are adapted to the extremely cold climate. They have special characteristics, such as white fur, strong sense of smell, a layer of fat under the skin, wide and large paws for swimming and walking in snow etc