Answer: It will take the Dolphin 2 hours to swim 40 miles. The penguin will take 8 hours. The swordfish will take 2/3 of an hour, that is 40 minutes, to travel 40 miles.
Step-by-step explanation: Divide the given distance by the unit rate given:
40/20=2 hours
40/5=8 hours
40÷60= 2/3 hour
This is the reverse of the process described in the question.
If the dolphin takes 2 hours to swim 40 miles, what is its unit rate? x ÷ y = R 40 miles÷2 hours= 20 mph.
40 miles ÷ 2/3 hour
3/2 × 40 = 60 mph
I hope this helps.
The median would be 27.
The median of a data set is the middle number in the set. Therefore, if you want to calculate the median of a data set you must first order the values from least to greatest. Then find the middle number and that is the median.
2, 8, 19, 27, 31, 51, 3335
A is (2,-4) B (-2,5) C (0,-6) D(-4,-3) E(3,0) F(5,4)
<u>If the </u><u>data presentation</u><u> in Exercise 2 is varied by organizing the data into classes, the data presentation is called a </u><u>grouped frequency distribution </u><u>. If one class in such a distribution is 80-89, the lower class limit is 80 and the upper class limit is 89.</u>
What is the formula for grouped frequency distribution?
- A grouped frequency distribution shows the scores by grouping the observations into intervals and then lists these intervals in the frequency distribution table.
- The intervals in grouped frequency distribution are called class limits.
What is the formula for grouped frequency distribution?
- In other words, the mean for a population can be found by dividing ∑ m f by , where is the midpoint of the class and is the frequency.
- As a result, the formula μ = ∑ m f N can be written to summarize the steps used to determine the value of the mean for a set of grouped data.
Learn more about grouped frequency distribution
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<u>The complete question is - </u>
If the data presentation in Exercise 2 is varied by organizing the data into classes, the data presentation is called a ______________. If one class in such a distribution is 80-89, the lower class limit is 80 and the upper class limit is 89.