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3 years ago

What is 15 5/7 - 6 4/5

Mathematics

2 answers:

SVETLANKA909090 [29]3 years ago

8 0

Answer:

$8\frac{32}{35}$

Step-by-step explanation:

Blababa [14]3 years ago

4 0

Answer:

8.9

Step-by-step explanation:

15.71428571-6.8=8.914285714

We round of to one significant figure because its addition n the lowest is 6.8

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$0.75

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3 years ago

What are the possible values of x if (4x – 5)2 = 49?

STatiana [176]

2(4x - 5) = 49
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3 years ago

Plz help me am being timed right now

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Answer:

11.8 meter below

Step-by-step explanation:

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3 years ago

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If i can get 3 snapple Iced tea. and its 3 for $6 How would it be if i get 2 snapple Iced tea?

nikklg [1K]

Answer:

4 dollars for 2 drinks (2 dollars for 1 drink)

Step-by-step explanation:

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8 0

3 years ago

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The temperature of coffee served at a restaurant is normally distributed with an average temperature of 160 degrees Fahrenheit a

posledela

Answer:

The 20th percentile of coffee temperature is 155.4532 degrees Fahrenheit.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 160 degrees

Standard Deviation, σ = 5.4 degrees

We are given that the distribution of temperature of coffee is a bell shaped distribution that is a normal distribution.

Formula:

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

We have to find the value of x such that the probability is 0.2

$P( X < x) = P( z < \displaystyle\frac{x - 160}{5.4})=0.2$

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

$\displaystyle\frac{x - 160}{5.4} = -0.842\\\\x = 155.4532$

Thus,

$P_{20}=155.4532$

The 20th percentile of coffee temperature is 155.4532 degrees Fahrenheit.

7 0

3 years ago