mr costa randomly surveyed 20 students as they walk throught the front door of the elementary school and found that 8 of them were buying hot lunch.If there are 430 students at this elementary school,how many would you expect to buy lunch?
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Answers

Answer 1

Answer:

172

Step-by-step explanation:

8/20 = x/430

8(430) = 3,440 = 20x/20

3,440/20  = 172

Ik it's complicated but you'll get it & your so very welcome.


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y 20 18 16 14 12 Total Cost ($) 10 000 2 3 1 2 Time (hours) 2. 3 4 6 8 y = IX +​

Answers

To find the m(slope) of our graph we can take two points from the graph, im going to use (0,2) and (1,8) the formula for slope is y2-y1/x2-x1
Plug the points in to get 8-2/1-0
The slope of this equation is 6.

For the y-intercept we just find where the line meets the y-axis and that is at 2.

The equation for this graph is y=6x+2

please help me figure this out!!

Answers

Do you have a Ti-84 calculator you need one to solve this problem.

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!

Answers

over 1 up 5 each time

You are planning to go to the movies tonight, but you only have 25
dollars to spend. The ticket for the movie that you want to see is 9
dollars plus 4 dollars for each snack. Write an equation that would
represent how many snacks you can buy after purchasing the ticket. Use
x to represent the number of snacks purchased.

Answers

Answer:

9+4x=25

Step-by-step explanation:

Problem #2 - 8.2B
Which point on the number line best represents the location of 98 ?

F Point M
G Point N
H Point P
J Point O



PLEASE ANSWER WILL GIVE BRAINLIEST

Answers

answer J

if you simplify 98 it’ll give you 9.89...

1 point
Question 17: There were 900 students initially infected by the flu. After
medicine was distributed, the number of sick students was cut in half
every week. How many will still be sick after 4 weeks?

Answers

Answer:

56 will be sick after 4 weeks.

Step-by-step explanation:

900 / 2 = 450 (Week 1)

450 / 2 = 225 (Week 2)

225 / 2 = 112.5 (Week 3)

112.5 / 2 = 56.25 (Week 4)

(Rounding to a whole number since there can't be a quarter of a child)

Answer:

56.25 students would still be sick after 4 weeks

Which expression is not a polynomial?

Answers

12 is not a polynomial

Find the area of the semicircle

Answers

Answer:

3.92yd

Step-by-step explanation:

pi r²÷2

pi 2.5²÷2=3.92

Two similar cylinders have heights of 3 cm and 6 cm respectively. If the volume of the smaller cylinder is 30 cm3, find the volume of the larger cylinder.Required to answer. Single line text.​

Answers

Answer:

Volume of big cylinder = 1,438.76 cm (Approx.)

Step-by-step explanation:

Given:

Height of smaller cylinder = 3 cm

Height of big cylinder = 6 cm

Volume of smaller cylinder = 30 cm³

Find:

Volume of big cylinder

Computation:

Volume of smaller cylinder = πr²h

(22/7)(r²)(3) = 30

Radius of small cylinder = 1.783 cm (Approx.)

So,

Radius of big cylinder = 1.783 x 2 = 3.566 cm (Approx.)

Volume of big cylinder = πr²h

Volume of big cylinder = (22/7)(3.566)²(6)

Volume of big cylinder = 1,438.76 cm (Approx.)

While teaching at the University of Pisa in 1589, Galileo tested Aristotle’s laws of falling objects by dropping large metal projectiles off the?
.A university building
B. church tower
C. Leaning tower of Pisa
D.Eiffel Tower
He concluded that a heavier object dropped from the same height as a lighter object will land?
A. before the lighter objects lands
B. after the lighter objects land
C. at about the same time as the lighter objects




Answers

Answer:

C. Leaning tower of Pisa and C. at about the same time as the lighter objects

Step-by-step explanation:

Answer:

Leaning Tower of Pisa

at about the same time as the lighter objects

Step-by-step explanation:

100 on edge

Three friends were helping to push a car. If all three are pushing equally hard and the net force is 600N, how hard is each one pushing the car?

Answers

Answer:

One person is pushing the car in the net force of 200N

Step-by-step explanation:

600 divided by 3 (600 N in total, and 3 person pushing.)

4)
Which set of numbers are equivalent?
A)
5
5%, 0.5, 5/100
100
B)
8
8%, 0.08, 8/10
10
C)
10.
10%, 0.1,
10/100

D)
12%, 0.012,
12/100

Answers

Answer:

It’s c

Step-by-step explanation:

.1 can also be written as .10 which when you multiply by 100 is 10 so it’s also written as 10%

Why is LMNO=PQRS?? Help

Answers

Answer:

They are equal because they’re the same shape with the same lengths, but one is rotated. This is an example of rotation.

Step-by-step explanation:

Solve for x using the image (show work)

Answers

x+106=100(corresponding angle)

x=100-106

x= -6

A circle has a circumference of 12. What is the area of the circle and how do you find it?

Answers

Answer:36cm

Step-by-step explanation:The area of a circle is pi times the radius squared (A = π r²

a) Diameter is 12cm

; (b) radius is 6cm

; and (c) area is 36πcm2.

Explanation:If r is the radius of a circle, then its circumference is 2πr

and area is πr2.

As circumference is given to be 12π, we have 2πr=12π

or r=12π2π=6cm.

As such radius is 6cm

and diameter being double of radius, diameter is 2×6=12cm.

and area is π×62=36 cm2

.

for brainiest:):):):):):):):):):):)

Answers

Answer:

34 yd for the perimeter. I mean you just add the sides together... So 8+2+3+7+5+9 = 34.

9 4/5 divided by 3 2/11

Answers

17.966666 I’m pretty sure lol

Find the midpoint between -4 and 36

Answers

Answer:

16

Step-by-step explanation:

32 divided 10 - 8 divided 2 - 3

Answers

Answer:

-3.8

Step-by-step explanation:

Answer:

-3.8 i think sorry this is the first one im not sure with.

Step-by-step explanation:

32/10=2.4

3-2=1

2.4-8=5.6

5.6/1=5.6

=-3.8

1. Mr. Jackson took a cab from school to JFK Airport. The taxi fare was d dollars and he gave the
driver a 15% tip. Which of the following expressions can be used to describe the total fair? Select all
that apply.

Answers

Are there any choices?

Find the 53rd term of the arithmetic sequence -12, -1, 10

Answers

440 is the answer

Tn=a+(n-1)d

Tn=53

a= -12

n=53

d= 11

-12+(53-1)11 = 440

Answer:

560

Step-by-step explanation:

The sequence above is an arithmetic sequence

For an nth term in an arithmetic sequence

A(n) = a + ( n - 1)d

where a is the first term

n is the number of terms

d is the common difference

Since we're finding the 53rd term

a = - 12

n = 53

d = -1 - ( -12) = - 1 + 12 = 11 or 10--1 = 10 +1 =11

d = 11

So we have

A(53) = - 12 + (11)(53 - 1)

= - 12 + 11(52)

= -12 + 572

= 560

We have the final answer as

560

Hope this helps you

Which one is it ? NO LINKS
245
55
180
65

Answers

Answer:

245 is the best answer. I am right ta boy

Answer: 245

Step-by-step explanation:

60 + 120 + 65 = 245

Solve the right triangle. Round decimal answers to the nearest tenth.
B
14
6
А
b
С
In AABC, ~ .mA
7, and m_B~

Answers

Answer:

b=12.6

m<A=25.4

m<B=64.6

34, 57, 58, 56, 21. Which measure of center best represents the data? Explain why you chose that measure of center.

Answers

Answer:

Median

Step-by-step explanation:

The measure of center that best represents the data is median because the data is ordinal, that is it is in ranks. The first is 21, the second is 34, third is 56, fourth is 57 and fifth is 58.

PLEASE HELP !!!! Give an example of

Answers

Q. A rental car agency charges $30 per day plus 10 cents per mile to rent a certain car. Another agency charges $20 per day plus 15 cents per mile to rent the same car. If the car is rented for one day in how many miles will the charge from both agencies be equal?
A. Recall: 10 cents = 0.1$, 15 cents = 0.15$
If you rent a car from the first car agency your cost for the rental will be:
(1)
If you rent a car from the second car agency the total amount of money to pay is:

(2)
Given that the problem says you want to rent the car just for one day, then D = 1, therefore:
First agency:
Second agency:
At some number of miles driven the two costs will be the same:



Solving for M:




There is a representation of this problem in figure 4. Up until you drive 200 miles you would save money by going with the second company.

Solve for x in the picture below

Answers

Answer:

82 degrees

Step-by-step explanation:

The sum of all angle measurements of a 7 sided polygon is 900 degrees, and the sum of all expressed degrees is 818. 900-818= 82 degrees

plz help like i need it-​

Answers

Answer:

dont know if its a good answer but

Step-by-step explanation:

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

Interval Notation:

(

,

)

Set-Builder Notation:

{

x

|

x

R

}

The range is the set of all valid  

y

values. Use the graph to find the range.

Interval Notation:

(

,

)

Set-Builder Notation:

{

y

|

y

R

}

Determine the domain and range.

Domain:  

(

,

)

,

{

x

|

x

R

}

Range:  

(

,

)

,

{

y

|

y

R

}

sorry if put wrongly

Answer:

Step-by-step explanation:

find the circumference, rounding your answer to 1d.p.​

Answers

Answer:

Can't see the attached image

Step-by-step explanation:

Post another question and make sure it has the image on it :)

Please help I can’t figure it out NO LINKS
LINKS= REPORT

Answers

The line for y = -x + 3 is suppose to be negative slope. It’s -x so it goes down 1 right 1. Not up 1 right 1.

I’m about to spam questions if you can answer them please do .

Answers

Answer:

x is 70

Step-by-step explanation:

hope this helps you

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