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3 years ago

12

The total cost of filling your car with gas varies directly with the number of gallons of gasoline you are purchasing. If a gall

on of gas costs $1.85, how many gallons would you purchase for $15.54?

2 answers:

bazaltina [42]3 years ago

8 0

Answer:

8.4

Step-by-step explanation:

iogann1982 [59]3 years ago

4 0

Answer:

you get eight and a half gallons

Step-by-step explanation:

do do multiplication

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3 years ago

The stock price for International Business Machines (IBM) historically has followed an approximately normal distribution (when a

olganol [36]

Answer:

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Step-by-step explanation:

We are given the following information in the question:

Mean, μ = $188.876

Standard Deviation, σ = $4.6412

We are given that the distribution of stock price is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(stock price is between $186.26 and $192.47)

$P(186.26 \leq x \leq 192.47) = P(\displaystyle\frac{186.26 - 188.876}{4.6412} \leq z \leq \displaystyle\frac{192.47-188.876}{4.6412}) = P(-0.5636 \leq z \leq 0.7743)\\\\= P(z \leq 0.7743) - P(z < -0.5636)\\= 0.781 - 0.287 = 0.494 = 49.4\%$

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0.494 is the probability that on a selected day the stock price is between $186.26 and $192.47.

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3 years ago