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Ber [7]
3 years ago
9

Lucas's computer took 8 minutes to download 30 songs. How many seconds per song did it take his computer to download?

Mathematics
1 answer:
Aleks04 [339]3 years ago
3 0

Answer: 16 seconds.

Step-by-step explanation:

Step 1: Convert the 8 minutes to seconds:

8 minutes = 480 seconds

Step 2: Divide The 480 seconds by the 30 songs Downloaded:

480 / 30 = 16

Answer: it took Lucas 16 seconds to download 1 song.

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200 miles divided by 8​
yulyashka [42]

Answer:

25

200 divided by 8 is 25.

Step-by-step explanation:

6 0
2 years ago
Which special case is represented by x? - 121?
marissa [1.9K]

Answer:

A. the difference of two squares

Step-by-step explanation:

Please use the symbol " ^ " to indicate exponentiation.

Then we have x^2 - 11^2, which is the difference of two squares:

x^2 is a square, the square of x; and 11^2 is a square, the square of 11.

A. the difference of two squares

Note that a "difference of squares" is easily factored:

a² - b² = (a - b)(a + b)

and so your x² - 11² factors as follows:  (x - 11)(x + 11)

7 0
3 years ago
Read 2 more answers
As an aid to the establishment of personnel requirements, the director of a hospital wishes to estimate the mean number of peopl
GenaCL600 [577]

Answer:

n = 66.564

Step-by-step explanation:

  1. Because the population is unknown, we will apply the following formula to find the sample size:

n= (\frac{zS}{E} )^{2}

Where:

z = confidence level score.

S = standard deviation.

E = error range.

   2. We will find each of these three data and replace them in the formula.

"z" theoretically is a value that measures how many standard deviations an element has to the mean. For each confidence level there is an associated z value. In the question, this level is 99%, which is equivalent to a z value of 2.58. To find this figure it is not necessary to follow any mathematical procedure, it is enough to make use of a z-score table, which shows the values ​​for any confidence interval.

The standard deviation is already provided by the question, it is S = 100.

Finally, "E" is the acceptable limit of sampling error. In the example, we can find this data. Let us note that in the end it says that the director wishes to estimate the mean number of admissions to within 1 admission, this means that she is willing to tolerate a miscalculation of just 1 admission.

Once this data is identified, we replace in the formula:

n=(\frac{(2.58)(100)}{1} )^{2}

    3. The corresponding mathematical operations are developed:

n=(\frac{258}{1} )^{2}

n= (258)^{2}

n= 66.564

4 0
3 years ago
What's the next three numbers in this inductive reasoning pattern<br> 10,7,4,1
pentagon [3]
10, 7, 4, 1, -2, -5, -8
3 0
3 years ago
Jane has a bag of candy. She gives pieces to her friend. Then Jane's grandmother buys Jane 5 more pieces of candy than she had o
sammy [17]

Answer: She would have 32 pieces of cand in her bag

Step-by-step explanation: 27+5=32

3 0
3 years ago
Read 2 more answers
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