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Natali [406]
3 years ago
14

Use the following table to answer each question.

Mathematics
1 answer:
seropon [69]3 years ago
3 0

Answer:

  • $47.33
  • $43
  • $50.25

Step-by-step explanation:

Using table calculating the mean for each case

1. Entire year, sample size 12

  • x = 1/12* ∑ xi, i= 1 to 12
  • x = 1/12(40+42+40+38+48+50+58+62+56+46+44+44)
  • x = 1/12*568 = $47.33

2. First six months, sample size 6

  • x = 1/6*∑ xi, i= 1 to 6
  • x = 1/6(40+42+40+38+48+50)
  • x = 1/6*258 = $43

3. April through November, sample size 8

  • x = 1/8*∑ xi, i= 4 to 11
  • x = 1/8(38+48+50+58+62+56+46+44)
  • x = 1/8*402 = $50.25
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The equation which is used to determine x, the width of the window is, 2.5x- 0.6 = 4.9.  Option B shows the correct expression for width x of the window.

<h3>What are length and width?</h3>

Length is describing how long is the object. The width is defined as how wide is the object.

Given that the width of the window is 4.9 feet. The length is given as 0.6 feet less than 2.5 times its width.

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To know more about the length and width, follow the link given below.

brainly.com/question/3133832.

3 0
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Hey
Ray Of Light [21]
To find the first blank, just replace x in the equation with 12 and solve.
a(12) = 50 - 1.25(12) = your answer for blank 1

For blank 2: because x represents the number of apps on her phone, and x is given 12 for this problem, she bought 12 apps.

For blank 3: You would mention how many apps she got twice, so not the first option or the third option. It should be the answer from the first blank because the equation represents how much money is in her account.
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