The number of kids in a school decreased by 20% between last year and this year. Last year there were 80 kids in the school. What is the population this year? If you get stuck, consider making a table.

Answers

Answer 1

Answer:

64

Step-by-step explanation:

Multipy 80 by 80% or 0.80 to find the new population of 20% less


Related Questions

I need help with question 7

Answers

The answer would be that It is linear.

Karen will spend more than $25 on gifts. So far, she has spent $14. What are the possible additional amounts she will spend?
Use for the additional amount (in dollars) Karen will spend.
Write your answer as an inequality solved for c .

Answers

Answer:

i say it is  1.78 because you are didving the sum and the prat

Step-by-step explanation:

Help me pleaseeeeeeeeeeeeeeeeeeeee

Answers

Answer:

its the 4/7x 28

Step-by-step explanation:

you count by 2 and then you look for the numbers

Answer:

THE OTHER PERSON IS WRONG DO NOT LISTEN YOUNG ONE

Step-by-step explanation:

THE ANSWER IS D, 2/7 x 28

Use the coefficient of variation to determine
which data set varies the most.
on
Data Set 1: 2 = 12 and s = = 7
Data Set 2: 2
0.12 and s
= 0.3.
Data Set 1 CV ~
% (Round to the
nearest percent)
Data Set 2 CV =
%

Answers

Answer:

Dataset 2

Step-by-step explanation:

The Coefficient of variation is the ratio of the standard deviation and the population mean.

Data Set 1: 2 = 12 and s = = 7

Data Set 2: 2

0.12 and s

= 0.3.

Coefficient of variation = (standard deviation / mean) * 100%

Dataset 1:

Standard deviation = 7 ; mean = 12

Coefficient of variation = (7 / 12 ) * 100% = 0.5833 = 58%

Dataset 2:

Standard deviation = 0.3 ; mean = 0.12

Coefficient of variation = (0.3 / 0.12) * 100% = 2.5 * 100% = 250

Hence dataset 2 varies the most with a greater value of variation Coefficient.

Help me out in this question please

Answers

Answer:

The Answer is D, 6 1/12

Step-by-step explanation:

1. 3 1/4 = 3 3/12

2. 2 5/6 = 2 10/12

3. 3 3/12 + 2 10/ 12 = 5 13/12

4. 5 13/12 = 6 1/12

It’s D cuz I used calculator heheh

Write 2^60 as an exponent with a base of: b 16

Answers

Answer:

im pretty sure you tried to say

Write 2^60 as an exponent with a base of:

a) 8

b) 16

c) 32

the answer is :

8^20 (eight to the twentieth power)

[tex]2^{60}[/tex] is equivalent to [tex]16^{15}[/tex].

We can rewrite the expression by means of the following power property, that is to say:

[tex]a^{b\cdot c} = (a^{b})^c[/tex], [tex]a, b, c\in \mathbb{N}[/tex] (1)

Where [tex]a[/tex] and [tex]a^{b}[/tex] are bases.

If we know that [tex]a = 2[/tex] and [tex]b\cdot c = 60[/tex], then the equivalent expression is:

[tex]2^{60} = 2^{4\cdot 15} = (2^{4})^{15} = 16^{15}[/tex]

Hence, [tex]2^{60}[/tex] is equivalent to [tex]16^{15}[/tex].

We kindly invite to check this question on power operations: https://brainly.com/question/18112557

algebra 1- pls help! (I messed up previous question so I’m retyping it-)

Solve for x
-8x+14 ≥60 OR -4x+50 -2

B.) x ≤ -23/4

C.) x>-2

D.) There are no solutions

Answers

B.) x < -23/4 would be correct

Suppose scientists compared the wind speeds and barometric pressure readings of two severe storms over the Atlantic Ocean. For one of the storms, the barometric pressure was 1,000 mb (millibars), and the maximum wind speed was 100 kmh (kilometers per hour). The second had a barometric pressure of 960 mb and maximum wind speeds of 180 kmh. (a) Develop a rule that you could use to predict the wind speed given any barometric pressure.

Answers

Answer:

So i found the teacher notes after hours of looking here are the exact answers so i would recommend changing the wording.

Part A: Ordered pairs in the form (mb, kmh): (1,000, 100) and (960,180) Let X be the barometric pressure and Y be the wind speed.

Slope= (180-100)

          ----------------    = -2

          (960-1000)

Formula: y=-2(x-1000)+100

Part B: y=-2(980-1000)+100=140

140 kmh is reasonable. Because 980 mb is halfway between 960 mb and 1000 mb, we should expect a wind speed halfway between 180 kmh and 100 kmh.

Part C: The wind speed intercept is (0,2100) [or (2100,0) if written that way.] This means that when brometric pressure is 0 mb, then the wind speed would be 2100 kmh. However in the context of real weather, this is an impossible situation.

Part D: The slope means that every decrease of 2 kmh in wind speed corresponds to a 1 mb increase in barometric pressure.

hoped this helped :)

Question 21 of 25
In AQRS, m2 Q = 63º, m2 R = 70°, and m2 S= 47° Which side of AQRS is the
shortest?
O A. QR
O B. Cannot be determined
O C. RS
O D. QS
w
SUBMIT

Answers

Answer:

I think its QR

Step-by-step explanation:

Sorry if im wrong

The side QR is the shortest side.

Option A is the correct answer.

What is a triangle?

A triangle is a 2-D figure with three sides and three angles.

The sum of the angles is 180 degrees.

We can have an obtuse triangle, an acute triangle, or a right triangle.

We have,

We can use the fact that in a triangle, the side opposite the smallest angle is the shortest side.

So we need to determine which angle is the smallest.

Now,

In ΔQRS,

m∠Q = 63º, m∠R = 70°, and m∠S= 47°

Now,

m∠S= 47° is the smallest.

So,

QR is the side opposite to m∠S.

Thus,

QR is the shortest side.

Learn more about triangles here:

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Which of the following is an example of discrete data?

Temperature (in Fahrenheit) of teh Pacific Ocean at Huntington Beach
Lifetime (in hours) of 35 fluorescent light bulbs
Amount of caffeine (in milligrams) for 8 ounces of popular drinks
Number of hamburgers sold each day at Hamburger Mary's
Weight of dogs (in pounds) at the Seal Beach Animal Care Center

Answers

Answer:

Number of hamburgers sold each day at Hamburger Mary's because it's counting a number of something, not measuring a quantity with respect to a variable like temperature or weight. If this is still unclear let me know what I need to clarify. Have a nice night.

Please answer I’ll pay you $100 lol thanks

Answers

Answer:

d = [tex]\pi[/tex]

e = [tex]-\sqrt{8}[/tex]

f = [tex]\frac{3}{2}[/tex]

Step-by-step explanation:

D is equal to pi because pi is 3.1415... Therefore we need a point that is a little more than -3 and that is point d.

[tex]-\sqrt{8}[/tex] is roughly equal to -2.8 because 3 * 3 = 9 so that is too much, and 2 * 2 = 4 is too little so it has to be between -2 and -3. Therefore the point is e.

For 3/2 it has to be less than 2 because 2 cannot go into 3 more than once. The point would then be point f.

Hope this helps!!

- Kay :)

GIVING BRAINLIEST I ONLY NEED A SENTENCE!
During a chemical reaction, how do the substances that form differ from the substances that react?

Answers

Answer:

The substances that form are a combination of the two reactants.

Step-by-step explanation:

what is 2 x 8 x 10987

Answers

Answer:

175792

Step-by-step explanation:

8 x 2 = 16

16 x 10987 = 175792

There are 3 boys for every 4 girls in a class. If there are 16 girls, how many boys are there?

Answers

12 simple mental math ty

If there are 3 boys for every 4 girls in a class, there would be 12 boys because 16 ÷4 us 4, and 4×3 is 13.

2xy-xz=4 solve for x

Answers

Answer :
x = 4/2y-z

Step by step explanation:
1) factor out variable x.
x(2y-z) = 4

2) divide both sides by 2y-z
x(2y-z)/2y-z = 4/2y-z

x = 4/2y-z

f(x)= x^2. what is g(x)?​

Answers

Answer:

A

Step-by-step explanation:

[tex]f(x) ~ \mathsf{has ~(1,1)~ in ~it, ~so ~the ~answer~ is ~ \boxed{A}}[/tex].

A number x is multiplied by - 7/12. The product is -0.6. What is the value
of x?

Answers

Answer:

7.2/7

Step-by-step explanation:

is the answer

follow me

A glass is 1/3 full. Then 75cm of orange juice is poured in.
The glass is now full. What is the total volume of the glass?

Answers

Answer:

5

Step-by-step explanation:

Total volume is five

what is the sum of 3 8 added to 1 3

Answers

answer:51
explanation:

Answer:

37

Step-by-step explanation:

First multiply 3 by 8 (24)

then add 13

Target is having black Friday deals Alma enLG 50 TV cost $330 and it is on sale for 30% off what is the sale price of the TB after the discount in excluding tax

Answers

The sale price is $231. Explanation: 30% of 330 is 99. You do 330 times 0.3 to get 99. And since it is on sale you do 330 minus 99 which equals 231.

Enter a numerical expression for the word expression.
the difference between 77 and 16

Answers

Answer: 61

Step-by-step explanation: To find the difference means to subtract. 77 - 16 = 61

Trevor recorded the amount of material collected for recycling at his school for 5
weeks. Trevor calculated a line of best fit for the data to model the amount collected, y,
as a function of time, x. He found the correlation coefficient to be between 0.7 and -1.
Which statement BEST describes the correlation among the data?
A. There is a weak correlation in which the amount collected increased as time increased.
B. There is a weak correlation in which the amount collected decreased as time increased.
C. There is a strong correlation in which the amount collected increased as time increased.
D. There is a strong correlation in which the amount collected decreased as time increased.

Answers

The statement that best describes the correlation among the data is this: D. There is a strong correlation in which the amount collected decreased as time increased.

How to determine the best sentence

In determining the coefficient relationship between two variables, it is important to note that a coefficient 0f 0.7 and above is considered strong. In the given data, we see that the correlation coefficient was between 0.7 and -1.

This means that there is strong evidence to indicate that the amount of material collected decreased as time went by.

Learn more about coefficient relationship here:

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answer the question for z

Answers

Answer: The answer is z=mn/(m–n), Abhlnav, did you see the question that has been deleted? It’s because it’s a language about Polish.

Step-by-step explanation: Solve the rational equations by combining the expressions and isolating the variable of Z.

find the value of x of given figure and solve this question step by step plzz help question number D​​

Answers

Answer:

15

Step-by-step explanation:

First we need to find the length of BC and for that we gonna use Pysagoras theorem

10^2 + (2√11)^2 = |BC|^2

√144 = |BC|^2

12 = BC Now we will use this to find the value of x

x^2 = 12^2 + 9^2

x^2 = 144 + 81

x^2 = 225

√x^2 = √225

x = 15

Answer:

The value of x is 15 cm.

Step-by-step explanation:

There are two triangles in the diagram that share a common side.

The triangles are:

ABC and BDC

First we have to find the third side of BDC so that we can use it to find the value of x.

The triangle is a right angled triangle so Pythagoras theorem can be used to find the third side.

In the triangle

[tex]Base = BD =10cm\\Hypotenuse = BC = ?\\Perpendicular = CD = 2\sqrt{11}cm[/tex]

Pythagoras theorem is given as:

[tex](Hypotenuse)^2 = (Base)^2 + (Perpendicular)^2\\BC^2 = BD^2 + CD^2\\BC^2 = (10)^2 + (2\sqrt{11})^2\\BC^2 = 100+(2^2 * 11)\\BC^2 = 100+(4*11)\\BC^2 = 100+44\\BC^2 = 144\\\sqrt{BC^2} = \sqrt{144}\\BC = 12cm[/tex]

Now for triangle ABC

[tex]Base = BC = 12 cm\\Perpendicular = AB = 9 cm\\Hypotenuse = AC = x\\[/tex]

Using Pythagoras theorem

[tex]AC^2 = BC^2+AB^2\\x^2 = (12)^2 + (9)^2\\x^2 = 144+81\\x^2 = 225\\\sqrt{x^2} = \sqrt{225}\\x = 15cm[/tex]

Hence,

The value of x is 15 cm.

What is required for an electric charge to flow through a wire?

zero resistance in the wire
a balance of electric potential
high resistance in the wire
a difference in electric potential

Answers

a difference in electric potential

The thing that is required for an electric charge to flow through a wire is D. a difference in electric potential.

What is an electric charge?

It should be noted that a electric charge simply means a property of matter that shows how they're affected by a magnetic field.

In this case, the thing that is required for an electric charge to flow through a wire is a difference in electric potential.

Learn more about electric charge on:

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Find x AND the length of each side if ABC is an isosceles triangle with AB = BC . (Answers Rouen to the nearest tenth if needed)

Answers

Answer:

x = 7

AB = 7

BC = 7

Step-by-step explanation:

AB = BC cuz it's an isosceles triangle

In the given isosceles triangle x is 7 units and AB ≅ BC is also of 7 units.

What is a triangle?

A triangle is a three-sided closed-plane figure formed by joining three noncolinear points. Based on the side property triangles are of three types they are Equilateral triangle, Scalene triangle, and Isosceles triangle.

As the triangle has two equal sides we can equate two expressions to find x.

∴ 2x - 7 = 4x - 21.

- 2x = - 14.

2x = 14.

x = 7.

AB = 2(7) - 7.

AB = 14 - 7.

AB = 7.

BC will also be of 7 units as AB BC.

learn more about triangles here :

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what is the solution of inequality -6+2p+3 >7

Answers

-6+ 2P +3> 7
Group like terms first - (2P -6+3 > 7)
Add/subtract the numbers - ( -6+3 equals -3)
2P -3 > 7
Add 3 to both sides (2P -3+3 > 7 + 3)
Simplify (2p>10)
Divide both sides by 2 (2p/2 > 10/2)
P>5

Which values of a, b, and c correctly represent the answer in simplest form? 3 =a O a=38.0= 14.0=1 a=1.0= 14.C = 38 O a= 1.5=7.C= 19 O a = 19.0= 7.0= 1​

Answers

Answer:

The answer could be A) or D) because the zero acts as a place holder. Its a little easier to derive it if you have a bigger decimal

Step-by-step explanation:

A phone has 5/8 of its battery charge left. If the battery loses 3/8 of its full charhe every hour, how many hours will tbe battery last?

Answers

Answer:

0.25 Hours

Step-by-step explanation:

First subtract 5/8 by 3/8 your answer will then be 2/8 the divide 2/8 to make it into a decimal and your answer will be 0.25

Hope this solved your question

(f- g)(x) =
what is the answer?

Answers

Answer:

(f- g)(x) =fx−gx

Step-by-step explanation:

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