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3 years ago

If the mean of symmetrical distribution is 28. Which of these values could be the median of the distribution?

Mathematics

1 answer:

Alex777 [14]3 years ago

5 0

In a symmetrical distribution mean=median=mode, so the median could be 28

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A car rents for $180 per week plus $0.75 per mile. Find the rental cost for a two-week trip of 500 miles for a group of three pe

Vinil7 [7]

Answer:

$735

Step-by-step explanation:

$180/week * 2 weeks = $360 for 2 weeks

$0.75/mile * 500 miles = $375

$360 + $375 = $735 for 2 week trip of 50 miles

5 0

3 years ago

A design on the surface of a balloon is 9 cm wide when the balloon holds 62 cm3 of air. How much air does the balloon hold when

Nimfa-mama [501]

$\bf \qquad \qquad \textit{ratio relations}
\\\\
\begin{array}{cccllll}
&Sides&Area&Volume\\
&-----&-----&-----\\
\cfrac{\textit{similar shape}}{\textit{similar shape}}&\cfrac{s}{s}&\cfrac{s^2}{s^2}&\cfrac{s^3}{s^3}
\end{array}\\\\
-----------------------------\\\\
\cfrac{\textit{similar shape}}{\textit{similar shape}}\qquad \cfrac{\sqrt{s^2}}{\sqrt{s^2}}=\cfrac{\sqrt[3]{s^3}}{\sqrt[3]{s^3}}\implies \cfrac{\sqrt{9}}{\sqrt{18}}=\cfrac{\sqrt[3]{62}}{\sqrt[3]{x}}$

$\bf \\\\\\
\cfrac{3}{3\sqrt{2}}=\cfrac{\sqrt[3]{62}}{\sqrt[3]{x}}\implies \cfrac{1}{\sqrt{2}}=\cfrac{\sqrt[3]{62}}{\sqrt[3]{x}}\implies \sqrt[3]{x}=\sqrt{2}\cdot \sqrt[3]{62}
\\\\\\
x=\left( \sqrt{2}\cdot \sqrt[3]{62} \right)^3\implies x=\sqrt{2^3}\cdot \sqrt[3]{62^3}\implies x=2\sqrt{2}\cdot 62
\\\\\\
\boxed{x=124\sqrt{2}}$

8 0

4 years ago

The variable z is directly proportional to x. When x is 10, z has the value 140.

gayaneshka [121]

Answer: z = 280

Step-by-step explanation:

If two variables are directly proportional, it means that an increase in the value of one variable causes an increase in the value of the other variable. Also, a decrease in the value of one variable causes an decrease in the value of the other variable.

The variable z is directly proportional to x. If we introduce a constant of variation, the expression would be

z = kx

When x is 10, z has the value 140. It means that

140 = 10k

k = 140/10

k = 14

The equation becomes

z = 14x

the value of z when x = 20 is

z = 14 × 20

z = 280

7 0

4 years ago

Write a word phrase for each algebraic expression

Solnce55 [7]

1. "twenty-five point 6 less the unknown number n"

2. "4 times x less 6"

3. "the quantity 'd' divided by 24"

4. "2 plus the quotient of 12 and x"

8 0

4 years ago

There are 7 animals in the barn. Some are chickens and some are oxen. There are 20 legs in all. How many of each animal are ther

zubka84 [21]

Answer:

4 Chickens, 3 Oxen

Step-by-step explanation:

Given:

7 animals
20 legs total

Known:

Chickens have 2 legs
Oxens have 4 legs

Solution:

4 Chickens have a total of 8 legs (2 + 2 + 2 + 2)
3 Oxen have a total of 12 legs (4 + 4 + 4)
There are a total of 20 legs in total between the chickens and oxens.

5 0

2 years ago