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ruslelena [56]
3 years ago
12

Determine whether the question

Mathematics
1 answer:
KiRa [710]3 years ago
4 0
"<span>How much did your classmates typically spend on music downloads last year?" is a statistical question, and the units would </span>be both the number of students and how many downloads each individual bought.
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Qaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Kipish [7]

Answer:

32.8 miles

Step-by-step explanation:

Amy is driving to Seattle. Suppose that the remaining distance to drive (in miles) is a linear function of her driving time (in minutes). When graphed, the function gives a line with a slope of -0.95. See the figure below. Amy has 48 miles remaining after 31 minutes of driving. How many miles will be remaining after 47 minutes of driving?

Answer: The general equation of a line is given as y = mx + c, where m is the slope of the line and c is the intercept on the y axis. Given that the slope is -0.95, substituting in the general equation :

y = -0.95x + c

Amy has 48 miles remaining after 31 minutes of driving, to find c, we substitute y = 48 and x = 31. Therefore:

48 = -0.95(31) + c

c = 48 + 0.95(31)

c = 48 + 29.45

c = 77.45

The equation of the line is

y = -0.95x + 77.45

After 47 minutes of driving, the miles remaining can be gotten by substituting x = 47 and finding y.

y = -0.95(47) + 77.45

y = -44.65 + 77.45

y = 32.8 miles

3 0
3 years ago
What is an example of a rate of change
nekit [7.7K]
When you have lines in graphs for ex

Y=2x+7
2x is the rate of change

7 is the instant amt if the x=0 (or the y-intercept)
6 0
3 years ago
What is the inerquartile of the data set [40,48,62,40,25,50,20 30
Zanzabum
You just find the quartiles which are 62 and 50 the mines them which equals 12.

5 0
3 years ago
Read 2 more answers
Mr. Kelly has 50 coins, all of which are either nickels or dimes. They have a
Ilia_Sergeevich [38]

So i think its $4.35.

Step-by-step explanation:

I did addition to find out this answer my calculations seem to be correct.

$3.85 + 50 cents = 4 dollars and 35 cents

3 0
3 years ago
Three swimmers competeted in a 50 m freestyle race. A description of their swimming speeds is given. Order ghe swimmers from fir
Svetradugi [14.3K]
We need the problem to answer
6 0
3 years ago
Read 2 more answers
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