Aimee and Stan work in the same department for a large corporation. They are curious about the proportion of their coworkers who have children. Aimee obtains a list of all the workers in the department, randomly picks 20 names from the list, and asks those coworkers if they have children. She finds that 72% of those surveyed have children. Stan waits in the break room one morning and asks the first 20 coworkers that pass by if they have children. He finds that 85% of those surveyed have children. Which result is the better estimate of the proportion of coworkers who have children?

Neither result is a good estimate.


85%


72%


Both results are equally good estimates.

Answer: d) 5/7

Step-by-step explanation:

10 out of 35 of the students are girls. The number of boys is therefore:

= 35 - 10

= 25 boys

Probability that the winner is a boy is:

= 25/35

Take that fraction to the simplest by dividing both by 5:

= 5/7

Answer:

10

Step-by-step explanation:

To obtain the length of the segment :

a² + b² = c²

a = 8 ; b = 6

8² + 6² = c²

64 + 36 = c²

100 = c²

Square root of both sides :

Sqrt(100) = sqrt(c²)

10 = c

Mistake in the solution is that 6² = 36 and not 12

Answer:

c(0) = 24*0 = 0  

c(8) = 24*8 = 192  

Your range is [0,192]

Step-by-step explanation:

Answer:

You have 8 cups of flour it takes 1 cup of flour to make 24 cookies the function c(f)=24f

c represents the number of cookies

f represents the cups of flour

You have 8 cups of  flour, we can use only 0 to 8 cups of flour.

so domain f is 0 to 8 cups [0,8]

Now we find the range

1 cup of flour to make 24 cookies

So 8 cups of flour = 24* 8 = 192 cookies

using 8 cups you can make 192 cookies

So number of cookies is from 0 to 192

Range is [0,192

Step-by-step explanation:

Answer:

y=13

Step-by-step explanation:

12-y=-1

-y=-13

y=13

Answer:

Step-by-step explanation:

Here you go mate

Step 1

x=4  

Step 2

3x-y=-1  Substitute 4 for x

(3)(4)-y=-1

-y=-13

Step 3

-y=-13  Divide both sides

answer

y=13

Step-by-step explanation:

it looks like compound interest.

initial amount $500

6% growth

after 10years $895.42

Answer:

x = 5

Step-by-step explanation:

4x - 18 = 38

38 - 18 = 20

20 / 4 = 5

Answer:

x=14

Step-by-step explanation:

Answer:

70%

Step-by-step explanation:

Answer:

I think it's A

Step-by-step explanation:

Subtract 24-10 and it leaves you with 14

Answer:

[tex]( - 2 {x}^{2} + 9x - 2) - ( - 7x + 6) \\ = - 2 {x}^{2} + (9 + 7)x + ( - 2 - 6) \\ = - 2 {x}^{2} + 16x - 8[/tex]

Answer:

x = 26

Step-by-step explanation:

1. Information

One can partition this figure into three different parts, two congruent triangles, and one rectangle. To find the value of x, one has to find the base of the two triangles, and then the base of the rectangle. Since opposite sides are congruent, the base of the rectangles is 10. To find the base of the triangle, one has to use the Pythagorean theorem.

2. Base of the rectangle

Again, opposite sides are congruent, hence the base of the rectangle is equivalent to the top part. Hence the base is 10.

3. Base of the triangle

Use the Pythagorean theorem;

[tex]a^{2}+b^{2} = c^{2}\\a-leg\\b-leg\\c-hypotenuse[/tex]

Substitute in the given value and solve

[tex]a^{2}+15^{2} = 17^{2}\\a^{2} + 225 = 289\\a^{2} = 64\\a = 8[/tex]

4. Finding x

There are two congruent trinagles, hence one has to add the base of the triangle twice. The equation will be

x = base_of_triangle + base_of_rectagle + base_of_triangle

x = 8 + 10 + 8

x = 26

Answer:

B) x=7

Step-by-step explanation:

Take 16/4 and 8/2 to get 4 for the both of them.

Then take 2.5 x 4 to get 10.

Finally fill in what you know.

10= x-3

7=x

Answer: It’s a or 13

Step-by-step explanation: took the test got 100%

Answer:

No.

Step-by-step explanation:

Price of each pretzel = $3.25

Price of each drink = $1.85

Price of each bag of popcorn = $0.99

Maximum money to be spent = $10

Price of two pretzels = $3.25 [tex]\times[/tex] 2 = $6.5

Price of two drink = $1.85 [tex]\times[/tex] 2 = $3.70

Price of two bags of popcorn = $0.99 [tex]\times[/tex] 2 = $1.98

Total money spent for buying two items of each type = $6.5 + $3.70 + $1.98 = $12.18

The money spent when 2 pretzels, 2 drinks and 2 bags of popcorn are bought is $12.18.

But maximum money available is $10.

Therefore, Clare would not be able to buy 2 pretzels, 2 drinks and 2 bags of popcorn with the amount of money available.

Answer: y=-x+2

Step-by-step explanation:

m=(-1-4)/(3+2)=-5/5=-1

y=-x+b

Plug in the values

y=-x+2

Answer:

y =  − x + 2

Step-by-step explanation:

Answer:

Step: Solvex=4for x:

x=4

Step: Substitute4forxin2x+3y=14:

2x+3y=14

(2)(4)+3y=14

3y+8=14(Simplify both sides of the equation)

3y+8+−8=14+−8(Add -8 to both sides)

3y=6

3y

3

=

6

3

(Divide both sides by 3)

y=2

Answer:

x=4 and y=2

Step-by-step explanation:

Step-by-step explanation:

-7x-36=20-3x

-36-20=-3x+7x

-56=4x

-56/4=X

-14=X

X=-14 answer

A. 124.9 is a supplement angle

Answer:

24

Step-by-step explanation:

To obtain the minimum number fi tiles needed;

We find the Lowest common multiple of 8 and 6

Multiples of :

6 = 6, 12, 18, 24, 30, 36, 42, 48,...

8 = 8, 16, 24, 32, 40, 48, 56,...

Hence, the lowest common multiple of 8 and 6 is 24

Answer:

its B

Step-by-step explanation:

Answer:

-5/2 is the reciprocal of -2/5, but the opposite would just be 5/2.

Step-by-step explanation:

Answer:

yes the answer is yes i think im not good at explaing but hope that helps

Step-by-step explanation:

27 - 9x +15y

Factor out common  term 3 :

3(9-3x+5y)

hope this helps!

Answer:

3(9-3x+5y)

Step-by-step explanation:

Answer:

3/5

Step-by-step explanation:

The equation of a line is written as

y = mx + b where

m is the slope

b is the y-intercept.

We put the given equation above in that form

10x + 6y = - 84

6y = -10x - 84

Divide both sides by 6

y = -10x/6 - 84/6

y = -5x/3 - 14

y = -5/3x - 14

The slope of this line is -5/3

But we are told that: the slope of the line is perpendicular to the line

Hence: we find the reciprocal of , -5/3

This is = 3/5

Therefore, the slope of a line perpendicular to the line whose equation is 10x + 6y = −84 is 3/5

Answer:

y=7x+5

Step-by-step explanation:

Answer:

[tex]\frac{9}{12} = \frac{15}{y} \\(12 * 15) / 9 = 20\\B) 20[/tex]

Step-by-step explanation:

Answer:

:0 according to my calculations

Step-by-step explanation:

cheese

Answer:

a) y = 4x + 7 (b) y = 5x + 1 (c) y = 6x + 2 (d) y = 9x + 13

Answer:

(2,-5)

Step-by-step explanation:

Answer:

d. 45%

Step-by-step explanation:

According to the frequency table there are 30 sudents who like rock in grades 9-10 and 25 students that like rock and are in grades 11-12.

25 ÷ 55 = n ÷ 100          

25 · 100 = 55 · n      

2500 ÷ 55 = n         n  = 45.454545        n = 45%

55 is the total amount of students that like rock

25 is the total amount of students that like rock in grades 11-12

100 is the total percentage

Answer

Step-by-step explanation:

i dont know but pls dont hate me no one anserd for 15 hours so i took some points