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Elza [17]
3 years ago
14

At Michael’s smoothie shop smoothies cost $3.50 during the week and $4.00 on weekends. If Jonathan bought a smoothie every day e

xcept Saturday how much did he spend on smoothies that week?
Mathematics
1 answer:
deff fn [24]3 years ago
6 0
Counting Sunday on it:

(3.50 + 3.50) + (3.50 + 3.50) = 14 + 3.50 = 17.50
      7            +      7           =  14 + 3.50 = 17.50

17.50 + 4.00 = 21.50

21.50 Hope this helps!

Not counting Sunday so just the weekdays then it would be 17.50 Hope this helps too!
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The length of time that an auditor spends reviewing an invoice is approximately normally distributed with a mean of 600 seconds
Bumek [7]
Answer: 11.5% 

Explanation:


Since 1 minute = 60 seconds, we multiply 12 minutes by 60 so that 12 minutes = 720 seconds. Thus, we're looking for a probability that the auditor will spend more than 720 seconds. 

Now, we get the z-score for 720 seconds by the following formula:

\text{z-score} =  \frac{x - \mu}{\sigma}

where 

t = \text{time for the auditor to finish his work } = 720 \text{ seconds}
\\ \mu = \text{average time for the auditor to finish his work } = 600 \text{ seconds}
\\ \sigma = \text{standard deviation } = 100 \text{ seconds}

So, the z-score of 720 seconds is given by:

\text{z-score} = \frac{x - \mu}{\sigma}
\\
\\ \text{z-score} = \frac{720 - 600}{100}
\\
\\ \boxed{\text{z-score} = 1.2}

Let

t = time for the auditor to finish his work
z = z-score of time t

Since the time is normally distributed, the probability for t > 720 is the same as the probability for z > 1.2. In terms of equation:

P(t \ \textgreater \  720) 
\\ = P(z \ \textgreater \  1.2)
\\ = 1 - P(z \leq 1.2)
\\ = 1 - 0.885
\\  \boxed{P(t \ \textgreater \  720)  = 0.115}

Hence, there is 11.5% chance that the auditor will spend more than 12 minutes in an invoice. 
8 0
3 years ago
Heeeeelpppppppppppppppppp
kotykmax [81]
The answer is x=70 degrees
5 0
3 years ago
Read 2 more answers
What are the zeros of this function?
fiasKO [112]

Answer:

x =0 and x = 4

Step-by-step explanation:

It is a quadratic function and hence will have two roots. It cuts graph at 2 points( x - axis ). Hence has two roots.

6 0
3 years ago
Easy points for those who are good at finding slope
olga2289 [7]

Answer:

second one

Step-by-step explanation:

don't Got time to explain but I hope I helped :)

5 0
2 years ago
A special jacuzzi has a cube shape. If its volume is 343 feet cubed, what are the lengths of its sides?
Valentin [98]

a cube, will be like the one in the picture below, with all equal sides, and therefore with a volume of x³.


\bf \textit{volume of a cube}\\\\
V=x^3~~
\begin{cases}
x=side's~length\\[-0.5em]
\hrulefill\\
V=343
\end{cases}\implies 343=x^3\implies \sqrt[3]{343}=x\implies 7=x

7 0
3 years ago
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