Question

Which of the following does not use the conversion ratio of 1 kilometer equals about 0.62 miles to solve the following problem: An airplane travels about 900 kilometers per hour. What is the airplane’s speed in miles per hour?

a) Converting 900 kilometers to miles by multiplying by 0.62
b) Converting 900 kilometers to miles by dividing by 0.62
c) Converting 900 kilometers to miles by adding 0.62
d) Converting 900 kilometers to miles by subtracting 0.62

Answer 1

The correct answer is option c) Converting 900 kilometers to miles by adding 0.62.

Step-by-step explanation:

The correct answer is option c) Converting 900 kilometers to miles by adding 0.62.

When converting kilometers to miles, we use the conversion ratio of 1 kilometer equals about 0.62 miles. To find the airplane's speed in miles per hour, we can multiply the given speed of 900 kilometers per hour by the conversion ratio.

Therefore, the airplane's speed in miles per hour is approximately 900 * 0.62 = 558 miles per hour. This means that the airplane is traveling at a speed of 558 miles per hour.