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2 years ago

3 consecutive multiples of 7 are 777

Mathematics

2 answers:

jasenka [17]2 years ago

4 0

Answer:

252, 259 and 266

Step-by-step explanation:

Multiples of a number are those numbers that are divisible by that. Like if x and y are any two numbers then if y is a multiple of x then the remainder should be equal to zero when x is divided from y.

Y_Kistochka [10]2 years ago

3 0

Answer:

Three consecutive multiples of 7 whose sum is equal to 777 are 252, 259 and 266.

<em>Please click above answer.</em>

Please do 3 brainliests because I need.

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Six different second-year medical students at Bellevue Hospital measured the blood pressure of the same person. The systolic re

Yanka [14]

Answer:

$Range=14$

$\sigma^2 =32.4$

$\sigma = 5 .7$

The standard deviation will remain unchanged.

Step-by-step explanation:

Given

$Data: 136, 129, 141, 139, 138, 127$

Solving (a): The range

This is calculated as:

$Range = Highest - Least$

Where:

$Highest = 141; Least = 127$

So:

$Range=141-127$

$Range=14$

Solving (b): The variance

First, we calculate the mean

$\bar x = \frac{1}{n} \sum x$

$\bar x = \frac{1}{6} (136+ 129+ 141+ 139+ 138+ 127)$

$\bar x = \frac{1}{6} *810$

$\bar x = 135$

The variance is calculated as:

$\sigma^2 =\frac{1}{n-1}\sum(x - \bar x)^2$

So, we have:

$\sigma^2 =\frac{1}{6-1}*[(136 - 135)^2 +(129 - 135)^2 +(141 - 135)^2 +(139 - 135)^2 +(138 - 135)^2 +(127 - 135)^2]$

$\sigma^2 =\frac{1}{5}*[162]$

$\sigma^2 =32.4$

Solving (c): The standard deviation

This is calculated as:

$\sigma = \sqrt {\sigma^2 }$

$\sigma = \sqrt {32.4}$

$\sigma = 5 .7$ --- approximately

Solving (d): With the stated condition, the standard deviation will remain unchanged.

5 0

3 years ago

Make b the subject of this formula. a=9b

USPshnik [31]

Answer:

a = 9b

divide each side by 9

$\frac{a}{9}$ = b

6 0

3 years ago

Rosa’s employer pays 80% of her health insurance premium and deducts the remainder from her paycheck. Rosa is paid weekly, and t

Lana71 [14]

The answer to your question is b. Hope i helped :)

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3 years ago

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PLS HELP 10 POINTS <br> QUESTION IN PIC

PilotLPTM [1.2K]

Answer:

Some integers are irrational

Step-by-step explanation:

An integer must be a whole number so it will always be rational.

6 0

3 years ago

3 times the measure of an angle is 14 less than the measure of its complement. What is the measure of the angle?

Sedbober [7]

Let the measure of the angle be x and from that the measure of its complement is 90 - x. The equation that best represent the given condition above is,
3x = (90 - x) - 14
The value of x from the equation above is 19. Thus, the answer is letter A.

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3 years ago