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solmaris [256]
3 years ago
5

Two stores sell CDs in packages, as shown in the table below. CD Prices at Store A Number of CDs in Package 1 12 20 45 Cost $0.7

0 $8.40 ? $31.50 CD Prices at Store B Number of CDs in Package 1 20 30 65 Cost $0.60 ? $18.00 $39.00 If the rate at each store is constant, which statement correctly compares the cost of a package containing 20 CDs?
Mathematics
2 answers:
o-na [289]3 years ago
8 0

Answer:

IT'S A BELIEVE PLZZZZZZZz

Step-by-step explanation:

sashaice [31]3 years ago
7 0

Answer:

a

Step-by-step explanation:

test on edg

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The Bill of Rights was added to the U.S. Constitution to support the Anti-Federalists’ demand for the protection of what?
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Tickets to a concert cost $24 before a 5% fee is added.How much are the tickets with the fee?
vagabundo [1.1K]

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$25.20

Step-by-step explanation:

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What is the equation of this graph
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Answer:

y-1=x^2

Step-by-step explanation:

That is the equation of a parabola with vertex at (0,1). The equation is y-1=x^2.

3 0
3 years ago
A random sample of adult female reaction times has a sample mean of x¯=394.3 milliseconds and sample standard deviation of s=84.
s2008m [1.1K]

Answer:

99.7%

Step-by-step explanation:

Given that mean (μ) = 394.3 ms and standard deviation (σ) = 84.6 ms.

The empirical rule states that for a normal distribution:

  1. 68% falls within one standard deviation (μ ± σ)
  2. 95% falls within two standard deviation (μ ± 2σ)
  3. 99.7% falls within three standard deviation (μ ± 3σ)

one standard deviation = 394.3 ± 84.6 = (309.7, 478.9). 68% falls within 309.7 and 478.9 ms

two standard deviation = 394.3 ± 2 × 84.6 = (225.1, 563.5). 95% falls within 225.1 and 563.5 ms

three standard deviation = 394.3 ± 3 × 84.6 = (140.5, 648.1). 99.7% falls within 140.5 and 648.1 ms

8 0
3 years ago
Is the relationship between the amount earned and number of days worked proportional?
Aliun [14]

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Yes

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x is the number of days worked

y is the total amount earned

m is the amount earned per day

so y = mx

7 0
2 years ago
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