for the direct variation equation y = 38x, what is the constant of proportionality
3 answers
The constant of proportionality in the direct variation equation y = 38x is 38.
a hummingbird flaps its wings 5,000 times a minute when hovering in place. how many times will it flap its wing in 15 seconds?
To find how many times the hummingbird will flap its wings in 15 seconds, we need to convert from minutes to seconds.
There are 60 seconds in a minute, so the hummingbird flaps its wings 5,000 times in 60 seconds.
To find the number of wing flaps in 15 seconds, we can set up a proportion:
(5,000 wing flaps) / (60 seconds) = (X wing flaps) / (15 seconds)
Cross-multiplying:
60 * X = 5,000 * 15
60X = 75,000
Dividing both sides by 60:
X = 75,000 / 60
X = 1,250
Therefore, the hummingbird will flap its wings 1,250 times in 15 seconds.
There are 60 seconds in a minute, so the hummingbird flaps its wings 5,000 times in 60 seconds.
To find the number of wing flaps in 15 seconds, we can set up a proportion:
(5,000 wing flaps) / (60 seconds) = (X wing flaps) / (15 seconds)
Cross-multiplying:
60 * X = 5,000 * 15
60X = 75,000
Dividing both sides by 60:
X = 75,000 / 60
X = 1,250
Therefore, the hummingbird will flap its wings 1,250 times in 15 seconds.
3 answers