A teacher will select 7 students in a class of 10 to participate in a social experiment. How many different groups are possible?

Answers

Answer 1

Answer:

the answer is 7/10=0.70

Answer 2

Answer:

7 gropus thats how manh


Related Questions

11. A gift store owner used 9 rolls of wrapping paper to
wrap his customers' gifts last week. Each roll was
66 1/2 in. long. How many gifts did he wrap if a 9 1/2 in. Long piece of wrapping paper was used to wrap each gift.

Answers

Answer:

Your answer would be 7!

Step-by-step explanation:

Hopefully am i right tell me if I'm wrong tho <3

Answer:

7

Step-by-step explanation:

3) Yellow Stone National Park is a popular field trip destination. This year the senior class at High
School A and the senior class of High School B both planned trips there. The senior class at High
School A rented and filled 4 vans and 2 buses with 142 students. High School B rented and filled 2
vans and 4 buses with 206 students. Every van had the same number of students in it as did the
buses. Find the number of students in each van and in each bus.

Answers

Answer:

Find the number of students in each van and in each bus?

13 students can fit in van and 45 students can fit in bus

There were 13 students in each van and 45 students in each bus for both High School A and High School B.

Let's assume that the number of students in each van is "v" and the number of students in each bus is "b".

From the information given, we can form the following equations:

Equation 1: 4v + 2b = 142 (High School A)

Equation 2: 2v + 4b = 206 (High School B)

We can start by multiplying Equation 1 by 2 and Equation 2 by 4 to eliminate the "b" variable:

2 * Equation 1: 8v + 4b = 284

4 * Equation 2: 8v + 16b = 824

Now, we subtract Equation 1 from Equation 2:

(8v + 16b) - (8v + 4b) = 824 - 284

12b = 540

b = 540 / 12

b = 45

Substitute the value of "b" back into Equation 1:

4v + 2(45) = 142

4v + 90 = 142

4v = 142 - 90

4v = 52

v = 52 / 4

v = 13

Therefore, there were 13 students in each van and 45 students in each bus for both High School A and High School B.

Learn more about the equation here:

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Kevin bought 3 DVDS for 45.99 how much would 7 DVDS cost?

Answers

$107.31. Hope this helps my guy

A total of 2,000 square feet is to be enclosed in two pens, separated by a chain link fence. The outside walls are to be constructed of brick. The brick wall costs $20 per linear foot and the chain link costs $4 per linear foot. Find the dimensions that minimize the construction cost

Answers

Answer:

Dimensions that minimize is; 20 ft x 100 ft

Step-by-step explanation:

Let the width and length be x and y respectively.

We are given area as 2000 Sq.ft.

Thus;

xy = 2000 - - - (eq 1)

We are told that the brick wall costs $20 per linear foot and the chain link costs $4 per linear foot. Thus;

C(x) = 20x + 4y

From eq(1),y = 2000/x

Thus;

C(x) = 20x + 4(2000/x)

C(x) = 20x + 8000/x

To minimize this, we will differentiate and equate to 0.

Thus;

C'(x) = 20 - 8000/x²

Equating to zeeo;

20 - 8000/x² = 0

20 = 8000/x²

20x² = 8000

Divide both sides by 20;

x² = 8000/20

x² = 400

x = √400

x = 20 ft

Putting 20 for x in eq 1,we have;

20y = 2000

y = 2000/20

y = 100 ft

Solve the proportion 5/m = 15/9

Answers

m = 3
just take 9 times 5 and divide by 15

Which number is divisible 2.3.5. and 9

Answers

Answer: A number is divisible by 2 if the last digit of the number is 0, 2, 4, 6, or 8.

Solution: Since the last digit of the number 246 ends in 6, that means it is divisible by 2.

Select each number that is less than -40.
0-27
0-101
14
21
0-41
-38

Answers

Answer:

-38

Step-by-step explanation:

Zander bought 3 hats for $7 each and 2 shirts for $9 each. How much did Zander spend

Answers

Answer: 16

Step-by-step explanation: because you add $7 and $9 together

Answer:

39

Step-by-step explanation:

If Zander bought 3 shirts you are multiplying 7 and 3 which gives you 21 so he bought 3 hats for $21 and then he spent 9 dollars on 2 shirts so 9 times 2 which gets you $18 so then you do $21+$18 which gives you the answer which is 39

PLEASE ANSWER THUS I WILL GIVE BRAINLIEST FAST PLEASE!!!!!

Answers

Answer:

b b b b

the answer is b

Step-by-step explanation:

Answer:

B.

Step-by-step explanation:

Mr Hassan grew at a rate of 1/6 feet per year. How long will it take him to grow from a height of 5 1/2 feet to a height of 6 1/4 feet

Answers

Answer:

Who knows!?

Step-by-step explanation:

Lisa is seven times as old as her brother. She will be four times as old as her brother in three years. Represent the above situation in mathematical form.
1)7x/3 = 4(x - 3)
2)7x – 3 = 4(x - 3)
3)7x + 3 = 4(x + 3)
4)None of the choices

Answers

Answer:

3

Step-by-step explanation:

please help me please!!!

Answers

Answer:

a is the answer

Step-by-step explanation:

because i said so

b bc that’s the most equivalent

1.
40% of the house plants were watered today. 320 house plants were watered. Which equation can be used to find how many plants there were?

Answers

Answer:

0.40x = 320

Step-by-step explanation:

40 = percent, 320 = part. Write the percent as a decimal and multiply by the whole.

2) 3 3/4 x 31 1/8 = m
m=?
If you answer I will rate you 5 stars. Thank you!

Answers

Answer:

m=10263

Step-by-step explanation:

33 ×311 =m

4. 8

264×1244=m

32

328416 =m

32

m=10263 ans

Samantha is making brownies for the entire staff at Arlington Elementary School
Altogether, 73 adults help make her school a wonderful place to be and learn every
day. One box of brownies is enough for 16 teachers. How many boxes of brownies will
Samantha need to make in order to have enough for the entire staff at Arlington
Elementary School?
F
G
4 boxes, because 73 - 16 is about 4
4 boxes, because 73 : 16 is about 456
5 boxes, because 73 - 16 is about 4.56
Ether 4 or 5 because 73 - 16 is about 4.56
H

Answers

It’s 5 boxes because..


4 x 16 = 64 so that wouldn’t be enough

However:

5 x 16 = 80 which is enough for 73 people

Hope this helps! Have a nice day :)

Heather bought a new laptop for $650 Heather has a coupon that lowers the price by 15%.
What is the price of the laptop after using the coupon?

Answers

650 x 85% = $552.5
You deduct the coupon percentage from the whole which is 100% and then multiply it by the whole price.

Ben has a cellphone plan where he pays $12 per
month plus $.10 per minute of talk time. The equation
y = 0.10x + 12 can be used to find his monthly phone
bill y given the number of minutes x he spends talking.
Which set or inequality represents a reasonable range
of the function?
F. 50, 126
H. 12 … y
G. 0 … y … 12
J. 0 … y

Answers

Answer:

H

Step-by-step explanation:

I have done the work before

Prakarit bought a pack of paper for 5.69 and he bought a toner for 9.76. What was the change?

Answers

Answer:

sorry grffggcfcfxtcrxrxrzrzeDdd

Will mark Brainliest! Please help!

Answers

Answer:

O. 56 is the answer,

0. 8

0. 7

5 6

0 0 0

0.56

-243 = -9(10 + x)

.......

Answers

Answer:

4x

Step-by-step explanation:

EDG 2020

The football team has a total of 20 jerseys. There are 6 medium-sized jerseys. What percent of the
jerseys are medium-sized jerseys?

Answers

6/20 are medium sized jerseys 5 * (6/20) = 30/100 = 0,3 = 30% are medium-sized jerseys

The area of a rectangle is a 40 square inches. The width of the rectangle is 4 inches more than the length. What are the dimensions of the rectangle?

Answers

Answer:

I think 10

Step-by-step explanation:

because 4 times 10 is 40 and 4 side so 10 for each side

The dimensions of the rectangle are 4.63 inches and 8.63 inches respectively.

Let the length of the rectangle be L.Let the width of the rectangle be W.

Given the following data:

Area of a rectangle = 40 square inches.

Translating the word problem into an algebraic equation, we have;

[tex]W = L + 4[/tex]

To find the dimensions of the rectangle:

Mathematically, the area of a rectangle is given by the formula;

[tex]Area = LW[/tex]

Substituting the values into the formula, we have;

[tex]40 = L(L+4)\\\\40 =L^2+ 4L\\\\L^2+ 4L -40=0[/tex]

Solving the quadratic equation by using the quadratic formula, we have the following values;

L = 4.63 or −8.63

Length, L = 4.63 inches.

For the width:

[tex]W = L + 4[/tex]

[tex]W = 4.63 + 4[/tex]

W = 8.63 inches

Read more: brainly.com/question/897975

Determine the constant of proportionality in the situation below.

Every bag of peanuts costs $3.55

Answers

Answer:

The constant is that every bag costs $3.55

Step-by-step explanation:

When the bag of peanuts costs $3.55 then Constant of proportionality is 3.55

What is constant of proportionality?

The constant of proportionality is the ratio between two directly proportional quantities

Here,

Every bag of  peanuts costs $3.55

Consider the number of bags =  x

Cost of the peanut bag = y

Therefore

y is directly proportional to x

y = kx

Where k is the constant of proportionality

k = [tex]\frac{y}{x}[/tex]

if the cost of the one bag is $3.55

Then [tex]k=\frac{3.55}{1}[/tex]

k=3.55

Hence, When every bag of peanuts cost constant of proportionality is 3.55

Learn more about  constant of proportionality here

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Plssss help.........

It’s geometry.......

Answers

Answer: me to

Step-by-step explanation:

Answer: EGD

Step-by-step explanation:


Pls hurry I’m being timed

Answers

Answer:

microscope

Step-by-step explanation:

11 Willie and two of his friends earn money mowing lawns in their neighborhood. On
Saturday, they mowed two lawns and were paid $28. If Willie and his friends split the
earnings equally, which expression does NOT equal how much Willie will receive from
working on Saturday?
A 3.28
B 28 - 3
28
с
3
3
D
28
Mach B Technologies Inc. © 2020 - Polaris
Zzz

Answers

Answer:

C

Step-by-step explanation:

The U.S. federal government conducts a sampling survey of high school seniors concerning their plans for future education and employment. One question asks whether they are planning to attend a four-year college or university in the following year. Fifty percent answer yes to this question. That fifty percent is a
a
statistic
b
variable
c
data
d
parameter

Answers

Answer:

The correct answer is A. That fifty percent is a statistic.

Step-by-step explanation:

Statistics is the science that studies the collection of objective data from reality and its subsequent analysis for the extraction of specific information on the group from which the data were obtained. Thus, statistics obtains different samples (such as opinions, personal characteristics, etc.) of a certain group, and compares their results with the purpose of establishing objective parameters applicable to the entire society.

In this way, the fact that in a survey 50% of the respondents answer in a specific way constitutes a specific statistic regarding that sample, which can in turn be transferred to society as a whole.

the breadth of a rectangular plot is 20 m less than its lengths find its dimensions if its perimeter is 120​

Answers

Answer:

breadth = 25m

length= 35m

Step-by-step explanation:

perimeter is distance all round a figure

in a rectangle we have two pairs of  opposite but equal lines

breadth = 2x( because of the two breadths in a rectangle) - 20

length = 2x(  because of the two lengths in a rectangle)

perimeter = 2x + 2x - 20

120 = 4x - 20

120 + 20 = 4x

140 = 4x

35 = x

to get the dimensions, we have to divide by 2 as we took both parts of each dimension

breadth = 2x - 20

                     2

             =2(35) - 20

                      2

              = 70 - 20

                      2

              = 50m

                   2

               = 25m

length = 2x

              2

        = 2(35)

              2

        = 70m

              2

           = 35m

Urgent! Line l is parallel to line m. If the measure of <6 is 75o, what is the measure of <1?

Answers

Answer:

m<1 = 105°

Step-by-step explanation:

<6 and <2 are corresponding angles. Therefore:

m<2 = m<6

Since m<6 = 75°, therefore, m<2 = 75°.

m<1 + m<2 = 180° (linear pair angles)

m<1 = 180° - m<2 (substitution property of equality)

m<1 = 180° - 75° (substitution)

m<1 = 105°

Choose the option that best describes what it means to get 70% on a test.

Answers

Answer:

7/10

Step-by-step explanation:

Answer

If there were 100 points possible, you earned 70

Step-by-step explanation:

college bridge say i got it right by your boi jose castillo and you welcome

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