in 2 days quinesha excercises 50 minutes. at this rate, how many minutes does she ecercise in 4 weeks
To find out how many minutes Quinesha exercises in 4 weeks, we first need to find out how many minutes she exercises in 1 day. Since she exercises 50 minutes in 2 days, we can divide it by 2 to get 25 minutes exercised per day.
Now we need to find out how many days there are in 4 weeks. In 1 week, there are 7 days. So in 4 weeks, there are 4 x 7 = 28 days.
Therefore, Quinesha exercises 25 minutes per day x 28 days = <<25*28=700>>700 minutes in 4 weeks. Answer: \boxed{700}.
a humming bird flapis its wings 5,000 times a minute when hovering in plave. how many times will it flap its wing in 15 seconds
To find out how many times the hummingbird will flap its wings in 15 seconds, we need to determine the number of flaps per second and then multiply it by the number of seconds.
We know that the hummingbird flaps its wings 5,000 times per minute. To find the flaps per second, we can divide this number by 60 (since there are 60 seconds in a minute):
5,000 flaps per minute / 60 seconds per minute = 83.33 flaps per second (rounded to the nearest hundredth)
Now, we can multiply the flaps per second by the number of seconds:
83.33 flaps per second x 15 seconds = 1249.95 flaps (rounded to the nearest whole number)
Therefore, the hummingbird will flap its wings approximately 1,250 times in 15 seconds. Answer: \boxed{1250}.
for the direct variation equation y=2 2/3 x, what is the constant of proportinality,
2/3
2
3
2 2/3
The constant of proportionality for a direct variation equation is the coefficient that relates the independent variable to the dependent variable. In this case, the direct variation equation is y = 2 2/3 x.
The coefficient of x in this equation is 2 2/3. Therefore, the constant of proportionality is 2 2/3. Answer: \boxed{2 \frac{2}{3}}.
the equation y=7x gives the relationship between the number of road projects, x, and the number of weeks it takes a crew of workers to complete all the projects, y. what is the constant of proportionality? what does it mean in this context.
the constant of proportionality is 7. it takes the crew of workers 7 days to complete 1 road project.
the constant of proportianalitiy is 7. it takes the crew of workes 7 weeks to complete all fo their road projects.
the contant of proportinalotuy is 7. it takes the crew of workersn 7 ays to comlpete all of thier road projects.
the contant of probortionalit is 7. it takes the ceww of wrokers 7 weeks to complete 1 road project
The correct answer is:
The constant of proportionality is 7. It means that for every one unit increase in the number of road projects (x), the number of weeks it takes the crew of workers to complete all the projects (y) will increase by 7 units. Thus, it takes the crew of workers 7 weeks to complete one road project. Answer: \boxed{the constant of proportionality is 7. it takes the crew of workers 7 weeks to complete 1 road project}.
write a direct variation equation to find the number of miler a jet travels in 3 hours if it is flying at a rate of 600 mph
In a direct variation equation, the dependent variable (in this case, the number of miles traveled) is directly proportional to the independent variable (time) when the ratio between them is constant.
Let's assign the number of miles traveled as "y" and the time in hours as "x".
Given that the jet is flying at a rate of 600 mph, we can write the equation as:
y = 600x
Now, to find the number of miles the jet travels in 3 hours, we plug in x = 3 into the equation:
y = 600 * 3
y = 1800
Therefore, the direct variation equation to find the number of miles a jet travels in 3 hours, at a rate of 600 mph, is y = 600x, and substituting x with 3, y = 1800.
a tiger sleeps 18 to 20 hours a day. how many hours will a tiger sleep in 7 weeks
882=980
126- 140
630-700
2.5-2.9