A model airplane flew a distance of 330 feet in 15 seconds. Select all unit rates that are equivalent to the speed of the model plane. 12 mph, 1056 ft per min, 1320 ft per min, and 15 mph. I PUT IN 36 POINTS
both are not equivlant to the top speed of the model plane because caculator op.
Answer:
Option C and D are equivalent to the speed of the model plane
Step-by-step explanation:
Distance = 330 feet
Time = 15 seconds
Speed of airplane = \(\frac{Distance}{Time} =\frac{330}{15} feet / sec.\)
Convert it into miles per hour
1 feet = 0.000189394 miles
3600 seconds = 1 hour
So, 1 second = \(\frac{1}{3600}hours\)
Speed of airplane in miles /hr = \(\frac{330}{15} \times \frac{0.000189394}{\frac{1}{3600}}\)
Speed of airplane in miles /hr = \(15.0000048\)
So, Speed of airplane in miles /hr is 15 miles per hour
Convert speed into feet per minute
60 seconds = 1 minute
\(1 minute = \frac{1}{60} minute\)
Speed of airplane in feet / minutes = \(\frac{330}{15} \times \frac{1}{\frac{1}{60}}\)
Speed of airplane in feet / minutes = 1320 ft/min
So, Option C and D are equivalent to the speed of the model plane