MATHEMATICS HIGH SCHOOL

8) A crew is made up of 8 men; the rest are women. 66% of the crew are men. How many people are in the crew?​

Answers

Answer 1
Answer:

☁️ Answer ☁️

12.

(66 2/3)

---------- (x) = 8

100

Solve for x

(66 2/3)x = 800

x = 800/(66 2/3)

x = 800/(200/3)

x = 800(3/200)

x = 4(3)

x = 12

Here's the link: https://www.wyzant.com/resources/answers/286307/a_crew_is_made_up_of_8_men_the_rest_are_women_66_2_3_are_men_how_many_people_are_in_the_crew

Hope it helps.

Have a nice day noona/hyung.

Answer 2
Answer:

Answer:

12 crew members I think hope this helps :)

Step-by-step explanation:

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These are the completed prime factor trees for 30 and 42. A) What two prime numbers are in both trees? B) Write down the hcf of 30 and 42 as the product of its prime factors C) Hence, work out the HCF of 30 and 42

The sum of a number m and 7.1

Answers

7.1+m

Or if you needed to add a variable to be the answer it would be 7.1+m=x

Use the given graph to determine the limit, if it exists. A coordinate graph is shown with an upward sloped line crossing the y axis at the origin that ends at the open point 3, 1, a closed point at 3, 7, and a horizontal line starting at the open point 3, 3. Find limit as x approaches three from the right of f of x..

Answers

Answer:

The limit as x approaches three from the right of f(x) is:

                                   3

Step-by-step explanation:

We are given a coordinate graph such that:

  • The left limit of three approaches to 1 .

( Since  A coordinate graph is shown with an upward sloped line crossing the y axis at the origin that ends at the open point (3, 1) )

  • The value of the graph at x=3 is:  7

( Since a closed point at (3, 7)  )

  • Also the right limit at x=3 is:  3

(  Since there is  a horizontal line starting at the open point (3, 3)  )
right hand limit is 3 left hand limit is 1.

Hope this helps X

Plzzzz help me with this question ❓​

Answers

Answer:

i think u should first givr her discount by doing 20/100×3500=700 and than he will get 5 percent profit than here

3500-700=2800

now for 5 % profit

5/100*2800=140

hence

20% discount=700

5% profit =140

it might be wrong but here u go

Estimated: 253 times 46

Answers

I do believe the answer is 11,638 I did this in my head maybe u should try it.
250 x 45 = 11250

Because you round 253 down to 250 and 46 down to 45

Ten people at a party decide to compare ages. Five people are 30 years old, three are 32, one is 31, and one is 65. To illustrate the importance of outliers, suppose the 65-year old walks away from the party. Remaining at the party are the five people who are 30 years old, three people that are 32, and one person that is 31.
Determine the mean age and standard deviation, to the nearest tenth, of the people who remain at the party.
A. The mean age of the remaining people at the party is a0
B. The standard deviation is:

Answers

Given:
Ten People
5 people = 30 years old
3 people = 32 years old
1 person = 31 years old
1 person = 65 years old

We need to arrange the ages in order from least to greatest.

30, 30, 30, 30, 30, 31, 32, 32, 32, 65 
65 is the outlier. 

A.) mean age without the outlier. count of the numbers : 9
5 x 30 =    150
1 x 31 =      31
3 x 32 =      96
total age  277
÷ # of pax    9
mean         30.77 round to the nearest tenth 30.80

b.) Standard deviation:
We need to calculate variance first:
5 pax : 30 - 30.80 = - 0.80 ⇒ -0.80² = 0.64 * 5pax = 3.20
1 pax : 31 - 30.80 =   0.20 ⇒  0.20²  = 0.04 * 1pax = 0.04
3 pax : 32 - 30.80 =   1.20 ⇒  1.20² = 1.44 * 3 pax = 4.32

Variance : (3.20 + 0.04 + 4.32) / 9 pax = 7.56 / 9 = 0.84

Standard deviation is simply the square root of the variance.

Standard deviation = √0.84 = 0.916 

0.916 round to nearest hundredths is 0.92
0.916 round to nearest tenths is 0.90

Recall, \pi is defined as the ratio of the circumference (say c) of a circle to its diameter (say d). That is, \pi=c/d. This seems to contradict the fact that \pi is irrational. How will you resolve this contradiction?

Answers

Though \pi =(c)/(d), it is an approximate value. As we get an approximate value and not a fixed one, there is no contradiction. Mathematically,
(c)/(d)=(2 \pi r)/(2r)=\pi.
Hence, no contradiction.
Yes, it is true that π = c / d . However, note here that c or the circumference is known by the equation c = 2πr. In finding the circumference, we take value of pi approximately, and hence there is no contradiction. However, even if the circumference is accurate, it will be an irrational number. Recall that an irrational number operated in any way results again into an irrational number. 
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