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3 years ago

7

Each year farmer records the number of pumpkins he sold for 5 weeks. The mean is 782 and the mean absolute deviation is 52. List

two possible values that are within the mean absolute deviation?

1 answer:

BARSIC [14]3 years ago

6 0

Answer:

When we have a mean M and a standard deviation S, the values that are within the mean absolute deviation are all the values in the interval:

[M -S, M + S]

In this case, we have:

M = 782

S = 52

Then the interval is:

[782 - 52, 782 + 52]

[730, 834]

Then any number between 730 and 834 are possible answers to this question, for example, we can choose:

789 and 801

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What's 1/2 as a whole number

WARRIOR [948]

Hey There!

$\frac{1}{2}$ can't really be a whole number, but converted to a decimal it is 0.5, and rounded to the nearest tenth, the answer would be one.

Have A Brainly Day!

7 0

3 years ago

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Vicente se gasta 20 euros en un pantalón y una camisa. No sabe el precio de cada prenda, pero sí sabe que la camisa vale dos qui

Vlad1618 [11]

Answer:

14.3€

Step-by-step explanation:

Let:

$C=Price\hspace{3}of\hspace{3}the\hspace{3}shirt\\P=Price\hspace{3}of\hspace{3}the\hspace{3}pants\\T=Total\hspace{3}cost$

Now, let's write the data provided by the problem, using algebraic notation.

The total cost of the clothes is 20€, so:

$P+C=T\\\\P+C=20$

The price of the shirt is :

$C=\frac{2}{5} P$

Replacing this value into the first equation:

$P+\frac{2}{5} P=20$

Solving for P:

$\frac{7}{5} P=20\\\\P=\frac{100}{7} \approx 14.3$

So, the price of the pants is 14.3€ and the price of the shirt is:

$C+14.3=20\\\\C=20-14.3=5.7$

Translation:

Deja que:

$C=Precio\hspace{3}de\hspace{3}la\hspace{3}camisa\\P=Precio\hspace{3}del\hspace{3}pantalon\\T=Costo\hspace{3}total$

Ahora, escribamos los datos proporcionados por el problema, usando notación algebraica.

El costo total de la ropa es de 20 €, entonces:

$P+C=T\\\\P+C=20$

El precio de la camisa es:

$C=\frac{2}{5} P$

Reemplazando este valor en la primera ecuación:

$P+\frac{2}{5} P=20$

Resolviendo para P:

$\frac{7}{5} P=20\\\\P=\frac{100}{7} \approx 14.3$

Entonces, el precio del pantalón es de 14.3 € y el precio de la camisa es:

$C+14.3=20\\\\C=20-14.3=5.7$

8 0

3 years ago

toni can carry up to 20lbs in her backpack. her lunch weighs 0.75lbs, her gym clothes weigh 2.3lbs,and her books b weigh 3.4lbs

Oxana [17]

let her lunch = l, her gym clothes = g, her books = x

20 pounds is the amount she can carry

her lunch (1) weighs 0.75 lbs

her clothes (1) weighs 2.3 lbs

her books (x) = 3.4 lbs

Set the inequality

3.4x + 2.3 + 0.75 ≤ 20

Simplify

3.4x + 3.05 ≤ 20

3.4x + 3.05 (-3.05) ≤ 20 (-3.05)

3.4x ≤ 16.95

3.4x/3.4 ≤ 16.95/3.4

x ≤ 4.99 (rounded)

x ≤ 4.99 can be one of your inequalities.

her books can weigh up to 4.99 pounds before her backpack breaks

hope this helps

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3 years ago

What is 5x(y²) because I'm very confused

Mamont248 [21]

Step-by-step explanation:

does it equal to anything?

3 0

3 years ago

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Determine whether quantities vary directly or inversely and find the constant of variation. 16 factory workers made 40 pieces in

Andrei [34K]

Answer:

Part A) $8\ workers$

Part B) $10\ workers$

Part C) $40\ workers$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $k=\frac{y}{x}$ or $y=kx$

Let

x -----> the number of workers

y ----> the number of pieces made

In this problem

The relation between the variables x and y represent a direct variation (proportional variation)

so

For x=16, y=40

Find the value of the constant of proportionality k

$k=\frac{y}{x}$

substitute the values

$k=\frac{y}{x}$

$k=\frac{40}{16}\\k=2.5\ \frac{pieces}{worker}$

The linear equation is equal to

$y=2.5x$

Part A) How many workers are needed to make 20 pieces

For y=20 pieces

substitute in the linear equation

$20=2.5x$

$x=8\ workers$

Part B) How many workers are needed to make 25 pieces

For y=25 pieces

substitute in the linear equation

$25=2.5x$

$x=10\ workers$

Part C) How many workers are needed to make 100 pieces

For y=100 pieces

substitute in the linear equation

$100=2.5x$

$x=40\ workers$

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3 years ago