Four classmates collect data by conducting a poll. They ask students chosen at random how many days a week they buy lunch. • Emma interviews 10 students. • Dylan interviews 35 students. Megan interviews 75 students. • Matt interviews 20 students. Whose results are probably the most trustworthy? A. Dylan's B. Matt's C. Emma's D. Megan's​

Answer:

7.1 (7.06 rounded to the tenth)

Step-by-step explanation:

The formula for Area of a Circle is: π·r²

R = Radius

π = pi, or 3.14

As long as you know the formula, this is easy!

In class, you may have already been told that the radius is half of the diameter.

1. Half of 3 ft is 1.5 ft.

2. Plug 1.5 in for r, in your calculator

3. Do the calculation, and you should come out to get 7.06858347058

4. Round it!

Finding area for a circle is satisfying, isn't it? xD

Answer:

sorry not sure.

Step-by-step explanation:

Answer:

x=4

x=9

x=9

x=4

Step-by-step explanation:

x+3 1/8=7 1/8 =4

x/2=4.5 =9

2 1/4=6 3/4 =9

x-3.23=0.77 =4

Answer:

10? I cant see it

Step-by-step explanation:

Answer:

$1.77

Step-by-step explanation:

10-(5.25+2.98)

=10-8.23

=1.77

Hope this helps :)

Answer:

$1.77

Step-by-step explanation:

Answer:

Scale factor is used to find the coordinates depending upon whether the scale factor value is less than one or more than one.

Step-by-step explanation:

A scale factor is a number which scales, or increases, some amount. In the condition y = Cx, C is the scale factor for x. C is likewise the coefficient of x, and might be known as the steady of proportionality of y to x.

An object is augmented if the scale factor is more noteworthy than 1. An article is decreased if the scale factor is a division, under 1. To discover the expanded picture, we initially should know the directions of our unique picture. At that point we basically increase the arrange by the scale factor to discover the widened picture.

Answer:

The answer is- 40

Step-by-step explanation:

( :

The area of the pentagon represented here is 40 units².

Area of a two dimensional shape is the total region which is bounded by the object's shape.

Given that the coordinates of the vertices of the pentagon given are A(0, 0), B(3, 5), C(3, 8), D(8, 5), and E(8, 0).

We have to find the area.

This pentagon can be divided in to triangle CBD and trapezium ABDE.

Find the area of each to find the total area of the pentagon.

Area of ΔCBD = [tex]\frac{1}{2}[/tex] × BD × CB

Using the distance formula,

BD = [tex]\sqrt{(8-3)^2+(5-5)^2}[/tex] = 5

CB = [tex]\sqrt{(3-3)^2+(5-8)^2}[/tex] = 3

Area of ΔCBD = [tex]\frac{1}{2}[/tex] × 5 × 3 = 7.5

Area of trapezium ABDE = [tex]\frac{1}{2}[/tex] × (AE + BD) × DE

Using the distance formula,

AE = 8, BD = 5 and DE = 5

Area of trapezium ABDE = [tex]\frac{1}{2}[/tex] × (8 + 5)5 = 32.5

Total area of the pentagon = 7.5 + 32.5 = 40 units²

Hence the total area is 40 units².

Learn more about Area here :

https://brainly.com/question/22590672

#SPJ3

Answer:

no because 3/20 is eguivilent to 0.15 whitch is half of 0.3

Answer:

No; he will need to sell and additional .15 of his collection

Step-by-step explanation:

15 is half of .3 so it can't be enough of his collection

sorry if not correct answer

Answer:

80

Step-by-step explanation:

Volume= Length x Width x Height

8x2x5= 80

If you want to break it up into smaller pieces ....

5x2=10 or 5+5=10    

10x8= 80 or 10+10+10+10+10+10+10+10

hope this helps! :)

Answer:

0.78 - (1 - 0.34)

Step-by-step explanation:

i think this is correct, im so sorry if it isnt

Answer: 0.78-(1-0.34)

Step-by-step explanation:

0.78 must be on the outside of the parenthesis'

We need to find out the length of Sergei's rod, so we need to subtract it by one

1-0.34=0.66

Now do 0.78-0.66

0.12

That is how you know you are finding out the difference in length.

Answer:

Unit rate is regularly a helpful method for contrasting proportions and their related rates when estimated in various units. The unit rate permits us to look at different sizes of amounts by inspecting the quantity of units of one amount for each one unit of the subsequent amount.

Step-by-step explanation:

Answer:

Part A:

Part B: The hardware store is cheaper.

Step-by-step explanation:

Part A:

At the hardware store, the ladder is 350 plus 6% tax. To solve this you would multiply 350 by 1.06 tax. Then you would get 371. Online, the ladder is 320 plus 6% tax and 5% shipping. To solve this you would multiply 320 by 1.11 (tax and shipping combined). Then you would get 355.20.

Part B:

To solve the cost of the ladder at the hardware store, you would need to first multiply 350 by 0.9 for the 10% discount. That would get you 315. Then add the 6% tax to get 333.90. To solve for the online ladder, you would need to multiply 320 by 1.06 (6%), and get an answer of 339.20. This means that the hardware store is cheaper.

Answer

Step-by-step explanation: How to find the percentage from the total value?

Suppose the value of which a thing is expressed in percentage is "a'

Suppose the percent that considered thing is of "a" is b%

Then since percent shows per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then we multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).

We need to Write the percent as a fraction in simplest form

16.24%

So, we can rewrite it as;

16.24 / 100

16 and 24/100 or 16 6/25

So the percent as a fraction is 16 6/25

We are given that;

Cost of ladder= $320

Sales tax of shipping and handling is 5% and 6%

Off on hardware= 10%

Now,

PART A:

At the online store, the ladder costs $320, and the sales tax is 6% of $320, which is:

$320 x 0.06 = $19.20

The shipping and handling is 5% of $320, which is:

$320 x 0.05 = $16

So the total cost of buying the ladder online is:

$320 + $19.20 + $16 = $355.20

At the physical store, the ladder costs $350, and the sales tax is 6% of $350, which is:

$350 x 0.06 = $21

So the total cost of buying the ladder at the physical store is:

$350 + $21 = $371

Therefore, buying the ladder online would be cheaper, with a total cost of $355.20.

PART B:

If the hardware store is offering 10% off the price of the ladder, the cost of the ladder would be:

$350 x 0.1 = $35 off

$350 - $35 = $315

So the total cost of buying the ladder at the physical store with the discount would be:

$315 + $18.90 (6% sales tax) = $333.90

If the online store is offering free shipping and handling, the total cost of buying the ladder online would be the same as the cost of the ladder:

$320 + $19.20 (6% sales tax) = $339.20

Answer:

Step-by-step explanation:

38÷3.14=12.10191...÷3=4.0...

Answer:

If we let x be the number of ticket sold and y be the amount in dollars donated then, the equation would be,

                                     x = 2y

We can check our answer by substituting the given,

                                     10 = 2(5)

                                      10 = 10

The equation can also be written as,

                                    y = (1/2)x

Student B is correct.  

Answer:

Sample Response/Explanation: The point that represents what the local business will donate is (10, 5). After testing the point in both equations, you can see that student B wrote the correct equation; 5 = 12(10).

Step-by-step explanation:

Answer:

Discount Percent = 58.33 %

Discount Amount = $ 7.00

Step-by-step explanation:

Answer:

41.66666667%

Step-by-step explanation:

It would happen because 5 is 5 4 is 4 3 is 3 2 is 2 1 is 1 and 0 is only one number 0.

If we fold a number line so that a vertical crease goes through 0, the points will match up for the same because of the same distance on both sides from zero.

A number line is a straight line representing numbers on it either vertically or horizontally.

If we fold a number line so that a vertical crease goes through 0, the points will match up for the same. this is due to the reason the points on a number line from zero are at the same distance on both sides so, the numbers will superimpose on each other when folded vertical through 0.

Since the distance of 1 and -1 is the same as zero so 1 would match -1.

Similarly for -2 and 2, -3 and 3, etc.

Learn more about number line here:

https://brainly.com/question/557284

Answer:

y=4

Step-by-step explanation:

Let's solve your equation step-by-step.

5y−14=2y−2

Step 1: Subtract 2y from both sides.

5y−14−2y=2y−2−2y

3y−14=−2

Step 2: Add 14 to both sides.

3y−14+14=−2+14

3y=12

Step 3: Divide both sides by 3.

3y/3=12/3

y=4

Answer:

5y + -14 = 2y + -2

-14 + 5y = 2y + -2

-14 + 5y = -2 + 2y

-14 + 5y = -2 + 2y

-14 + 5y + -2y = -2 + 2y + -2y

5y + -2y = 3y

-14 + 3y = -2 + 2y + -2y

2y + -2y = 0

-14 + 3y = -2 + 0

-14 + 3y = -2

-14 + 14 + 3y = -2 + 14

 -14 + 14 = 0

0 + 3y = -2 + 14

3y = -2 + 14

-2 + 14 = 12

3y = 12

y = 4

Answer:

b.cost of party

c=20f

Step-by-step explanation:

so we know the equation we have to use is c=20f

for part 2 we have to find out how much it's going to cost hank if 50 people attend his party;

so we know that 'c' is our unknown variable; now we write the equation filling in the 'blanks' with what we know-

c=20*50

now we multiply **remember that when you have a number and a letter right next to each other that they're being multiplied**

20*50

=1000

so hank will be spending $1000

good luck :)

hopefully, this helps

sorry i couldn't answer the last question

have a nice day !!

Step-by-step explanation:

x²+10x+26=y

x-1 x-2

y-37 y=50

Answer:The data is pretty evenly distributed in the age 20-39 group.

There are no outliers in either age group.

The range of the two age groups is the same.

Both data sets contain about the same amount of variation.

Step-by-step explanation: Plz make brainiest.

Answer:

Sample #1 : 16 11 9 12 11  10 10 8 15 0  2 15 14 7 11  5 14 20 3 11  14 7 0 5 21 =

0 0 2 3 5 5 7 7 8 9 10 10 11 11 11 11 12 14 14 14 15 15 16 20 21

you just need to pout them in order least to grates

Sample #2 : 21 14 0 3 6  7 10 11 7 9  14 0 15 5 12  20 0 12 11 6  0 21 14 0 6 =

0 0 0 0 0 3 5 6 6 6 7 7 9 10 11 11 12 12 14 14 14 15 20 21 21

you just need to pout them in order least to grates

Step-by-step explanation:

Answer:

665 ft^3

Step-by-step explanation:

The formula to find the volume of pyramids is 1/3 x length x width x height. One way to solve this is by multiplying the length, width and height, and then dividing it by 3.

14 x 9.5 x 15 = 1995

1995 / 3 = 665

So the volume is 665 cubic feet

I hope this helps :)

Answer:

FH

Step-by-step explanation:

The diameter is full lentgh of a circle.

Fh is the only line that goes completely across so thats your answer

Answer: C

Step-by-step explanation:

Answer: The 3 answer

Step-by-step explanation:

Its just a feeling

Answer:

The slope is -5

y intercept is -2

Step-by-step explanation:

Solve the equation for y

5x+y =-2

Subtract 5x from each side

5x+y -5x = -5x-2

y = -5x-2

This is in slope intercept form

y = mx+b  where m is the slope and b is the y intercept

The slope is -5 and the y intercept is -2

Answer:

Slope -5

y intercept 2

Step-by-step explanation:

5x+y=-2 in the form y =Mx+ c is,.

y=-5x+-2

y=-5x-2

Where m is the slope which is -5

And c is the y intercept i.e 2

I got 11,304. I don't know if that's right or if it's wrong. Let me check again

Answer: $30.50

Step-by-step explanation:

Let's take our given

One child

Two adults assuming that the aunt and uncle are above 18 years of age

Let's add 5.50+12.50+12.50

$30.50

Answer:

Step-by-step explanation:

x = number of pushups he did

Answer:

the number of pushups done by Noah

Step-by-step explanation:

if Noah did x amount of pushups then Diego did twice as many, which is 2x therefore in this equation x represents the number of pushups done by Noah