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iris [78.8K]
3 years ago
12

90 points PLZ HURRY Express 7 as a fraction. A) 1 7 B) 14 2 C) 2 7 D) 20 3

Mathematics
1 answer:
Vika [28.1K]3 years ago
8 0

Answer:

B) 14/2

Step-by-step explanation: 1/7 is a smaller number over a larger number, and we want a larger number over the bottom number for a whole number. 2/7 is the same reason. 20/3 as a whole number is 6 and 2/3 so no. 14/2 is the only answer

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Sam left a 18% tip on a 55$ dinner bill. A- how much was the tip? B- what was the total bill?
Sliva [168]
A= $9.90 B= $64.90

because, 18% of $55 is $9.90. Then you would add $9.90 to $55 and get $64.90
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2 years ago
The time that it takes a randomly selected job applicant to perform a certain task has a distribution that can be approximated b
zepelin [54]

Answer:

If the task is performed in less than or equal to 130.8 seconds, then, the individuals qualify for advanced training.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 150 sec

Standard Deviation, σ = 15 sec

We are given that the distribution of time taken is a bell shaped distribution that is a normal distribution.

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

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P( X < x) = P( z < \displaystyle\frac{x - 150}{15})=0.10  

Calculation the value from standard normal z table, we have,  

\displaystyle\frac{x - 150}{15} = -1.282\\x = 130.8  

Thus, if the task is performed in less than or equal to 130.8 seconds, then, the individuals qualify for advanced training.

8 0
3 years ago
A high school athletic department bought 40 soccer uniforms at a cost of $3,000. After soccer season they returned some uniforms
quester [9]

Interesting problem.

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8 0
3 years ago
In the function, 9 (2-) = 9 - 5x, what is the value of g (3)?
vekshin1

Answer: 53

Step-by-step explanation:

3 0
3 years ago
The owner of a moving company typically has his most experienced manager predict the total number of labor hours that will be re
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Answer:

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Step-by-step explanation:

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= 1 - 123.97 ÷ 2685.9

= 0.9538

3 0
3 years ago
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