Question

The Airbus A350 and the Airbus A380 are popular wide-body airplanes. At cruising speed, an Airbus A350 can fly 1,120 miles in 2 hours.

This equation describes the number of miles, y, that an Airbus A380 can fly in x hours at cruising speed:
y=650x
Which airplane has a faster cruising speed?
How much faster is it?
Write your answer as a whole number or a decimal rounded to the nearest hundredth.
miles per hour faster

Answer 1

The Airbus A380 has a faster cruising speed than the Airbus A350 by 90 miles per hour.

Step-by-step explanation:

To determine which airplane has a faster cruising speed, we can compare the rates at which the two airplanes travel. The equation y = 650x represents the number of miles, y, that an Airbus A380 can fly in x hours at cruising speed. Comparing this equation to the distance formula for the Airbus A350, 1,120 miles in 2 hours, we can see that the Airbus A350 flies at a rate of 560 miles per hour.

On the other hand, the equation y = 650x indicates that the Airbus A380 flies at a rate of 650 miles per hour. Therefore, the Airbus A380 has a faster cruising speed.

To find out how much faster it is, we need to calculate the difference in speed between the two airplanes.

The speed difference is calculated by subtracting the cruising speed of the Airbus A350 (560 mph) from the cruising speed of the Airbus A380 (650 mph).

Speed difference = 650 mph - 560 mph

= 90 mph.