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2 years ago

Please help!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

ziro4ka [17]2 years ago

6 0

Switch the parts on the right where it says “Multiplication property” and “subtraction property”

LUCKY_DIMON [66]2 years ago

5 0

Answer:

Error in step 2 and step 3, corrected below

Step-by-step explanation:

<u />

<u>Step | Justification</u>

6 + x/3 = 15 | Given

x/3 = 15 | Subtract 6 from each side. Should be subtraction property

x = 27 | Multiply both sides by 3. Should be multiplication property

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What is the third quartile, Q3, of the following distribution?

GREYUIT [131]

Answer:

The third quartile is:

$Q_3=29$

Step-by-step explanation:

First organize the data from lowest to highest

4, 5, 10, 12, 14, 16, 18, 20, 21, 21, 22, 22, 24, 26, 29, 29, 33, 34, 43, 44

Notice that we have a quantity of n = 20 data

Use the following formula to calculate the third quartile $Q_3$

For a set of n data organized in the form:

$x_1, x_2, x_3, ..., x_n$

The third quartile is $Q_3$ :

$Q_3=x_{\frac{3}{4}(n+1)}$

With n=20

$Q_3=x_{\frac{3}{4}(20+1)}$

$Q_3=x_{15.75}$

The third quartile is between $x_{15}=29$ and $x_{16}=29$

Then

$Q_3 =x_{15} + 0.75*(x_{16}- x_{15})$

$Q_3 =29 + 0.75*(29- 29)\\\\Q_3 =29$

5 0

3 years ago

Read 2 more answers

Carly spend 10 hours a day working at her job what percentage of her day does she spend at work ?

AlladinOne [14]

10/24 x 100 = 41.66
Approximately 42% of her day

3 0

3 years ago

Read 2 more answers

Bad Investment After Mrs. Fisher lost 9% of her investment, she had $22,750. What was Mrs. Fisher's original investment?

stira [4]

Answer:

$2500

Step-by-step explanation:

Given that,

The lost percentage = 9%

Amount she had = $22,750

We need to find Mrs. Fisher's original investment.

As she had lost 9%, it means she will remain with 91% of her investment. Let the original investment is x.

So,

$91\%\ of \ x=22,750\\\\\dfrac{91}{100}x=22,750\\\\x=\dfrac{22,750\times 100}{91}\\\\x=\$25000$

So, her original investment is equal to $25000.

7 0

3 years ago

Please help?!’ answerr

Ugo [173]

Answer:

The choice Draw 2

Step-by-step explanation:

$3(8 - 4x) < 6(x - 5) \\ 24 - 12x < 6x - 30 \\ 24- 12x + 12x < 6x + 12x - 30 \\ 24 < 18x - 30 \\ 24 + 30 < 18x - 30 + 30 \\ 54 < 18x \\ 54 \div 18 < 18x \div 18 \\ 3 < x \\ x > 3$

I hope I helped you^_^

6 0

3 years ago

HELP ASAP WILL GIVE BRAINLY

Mila [183]

Answer:

1 and 2 are not polyhedrons, as a circle has infinite sides

1. cone, 1 vertex

2. sphere, nothing

3. pentagonal prism?

wait but can't every face be a base???

anyway 7 faces, 10 vertices

4. triangular prism

5 faces, 6 vertices

Step-by-step explanation:

8 0

3 years ago