Mathematics High School

A flock of pigeons flew to a tall tree. Some of them perched on the branches, others landed under the tree. The pigeons sitting on the branches called to those under the tree, “if one of you joins us, there will be twice as many of us than you.” Then, those under the tree answered, “It’s true, but if one of you joins us, there will be as many of us as of you. Please help.

Answers

Answer 1

Answer:

There are 7 on the tree, and 5 below

Step-by-step explanation:

If one left the bottom, there would be 8 on top and 4 below. Therefore, twice as many. If one left the top it would be both 6 and 6.

Answer 2

Answer:

7 pigeons sitting on the branches,  5 pigeons under the tree

Step-by-step explanation:

Number of pigeons on the branches = bNumber of pigeons under the tree = t

We got equations below:

b + 1 = 2(t - 1) ⇒ b = 2t - 3b - 1 = t + 1 ⇒ b = t + 2

Eliminate b and solve for t:

2t - 3 = t + 22t - t = 2 + 3t = 5

Then find b:

b = t + 2 = 5 + 2 = 7

Related Questions

Order the following from Greatest to least.
5/12, 39%, 0.54, 4/25, 4%, 0.3

Answers

Answer:

0.54, 5/12, 39%, 0.3, 4.25, 4%

Step-by-step explanation:

Please I need help on this problem

Answers

Answer:

9

Step-by-step explanation:

Answer:

81

Step-by-step explanation:

Dan had 13 books in his library before his grandfather gave him a bunch more. Now he has 104. How many did his grandfather give him?

Answers

Answer:

91

Step-by-step explanation:

Answer:

His grandfather gave him 91 books

Step-by-step explanation:

?= number of books grandfather gave

13 + ? = 104

?= 104-13

?=91

Someone pls help me out?:(

Answers

Answer:

its 76

Step-by-step explanation:

76

the answer would be 76 !!

A shirt was on sale for 25% off. If the shirt was 39$, What was the price of the shirt after the discont​

Answers

Answer:

$29.25

Step-by-step explanation:

what is the 30th term in the linear sequence below
-5,-7,-9,-11,-13

Answers

Answer:

82

Step-by-step explanation:

if 3n-8 = the formula then you replace n with 30 to get the 30th term

so type into your calculator 3(30)-8 and you get 82

Solve for x : 8(2x+3)=-2x+96

Answers

Answer:

=

−

1

9

±

6

5

0

5

√

4

If not I’m sorry.

Step-by-step explanation:

Answer:

x=4

Step-by-step explanation:

8(2x+3)=-2x+96

16x+24=-2x+96

18x=72

x=4

find the value of x

Answers

Answer:

         x = 15

Step-by-step explanation:

RQ < PR < PQ

TV < UV < UT

ΔPQR~ΔUTV   ⇒     [tex]\dfrac{RQ}{TV}=\dfrac{PR}{UV}[/tex]

[tex]\dfrac{8}{x-3}=\dfrac{14}{x+6}\\\\8(x+6)=14(x-3)\\\\8x+48=14x-42\\\\48+42=14x-8x\\\\90=6x\\\\x=90:6=15[/tex]

This is for math Pls Answer it ???.

Answers

Answer:

D

Step-by-step explanation:

D. Just look at the ratio 6:12 yk

Nick, Jim & June share some money in the ratio 5 : 5 : 3.
In total, Nick and June receive £88.
How much does Jim get?

Answers

Answer:

26.4

Step-by-step explanation:

88÷2=44

44×.6=26.4

The length of an online commercial is about 15.1 seconds

Answers

Answer:

Step-by-step explanation:

Interesting...

I didn't know that

Help me for brainlist please

Answers

Answer:

C 80in^2

Step-by-step explanation:

Multiply 12*3*2 for the area of both sides of the H to get 72

For the middle multiply 2*4 to get 8

72+8=80

In a class of 27 students, if one out of every nine students
received an A on a quiz, how many students received an A?

Answers

The answer would be 3

Fiona needs $3676 each month for bills and rent, and
$166 each week for weekly expenses. How much does
Fiona need to net yearly?
A. $56,586
B. $45,890
C. $59.764
D. $52.744

Answers

D 52744
Explanation
I did all the calculations and I’m 99% sure I’m correct

2x+3=5

I need help please

Answers

Subtract 3 to bath sides: 2x=5-3 —> 2x=2
Then divide both sides by 2 to isolate the x: x=1

Answer:

1

Step-by-step explanation:

2x + 3 = 5

Subtract 3 on both sides to get the different values (variables, and numbers without variables) seperated.

2x + 3 - 3 = 5 - 3

2x = 2

Divide by 2 on both sides to isolate the variable

2x/2 = 2/2

x = 1

Check

Now that you have what "x" is (1) you can substitute that into the equation

2x + 3 = 5

2(1) + 3 = 5

2 + 3 = 5

5 = 5 CORRECT

Hope this helped!

Have a supercalifragilisticexpialidocious day!

Help meeeeeeeeeeeeeeeeeee

Answers

Answer:

Step-by-step explanation:

Since we know all the sides are equal, it’s an equilateral triangle and for eqilateral triangles all angles are of 60°, and angles lesser then 90°  are acute so we can say it’s an acute triangle

hope it helped:)

i will brian list you please help

Answers

Answer:

.......the answer is C)

Answer:

c

Step-by-step explanation:

Elena and Tomas rented a room in a restaurant for their wedding reception. They had to pay a rental rate of $160 plus $15 for the dinner of each guest who attended. They could not afford to pay more than $520 for the reception. Which inequality can be used to find how many guests (

Answers

Answer: See explanation

Step-by-step explanation:

Let the number of guests be represented by x.

The information given can then be used to generate an inequality that goes thus:

160 + 15x ≤ 520

15x ≤ 520 - 160

15x ≤ 360

x ≤ 360/15

x ≤ 24

The number of guests should be at most 24

The Celluloid Cinema sold 290 tickets to a movie. Some of these are child tickets and the rest were adult tickets. A child ticket cost $8 and an adult ticket costs $8.5. If the cinema sold 2407.5 worth of tickets, determine how many child tickets and how many adult tickets were sold?

will give brainliest !

Answers

Answer:

child tickets: 115

adult tickets: 175

Step-by-step explanation:

number of child tickets = x

number of adult tickets = y

(value of child ticket [8] * number of child tickets [x]) + (value of adult ticket [8.5] * number of adult ticket [y]) = total value (2407.50)

8x + 8.5y= 2407.50

290 (total number of tickets) = x (number of child tickets) + y (number of adult tickets)

290 = x+y

system of equations: 8x + 8.5y= 2407.50

290 = x + y

solve equation:

x = 115

y = 175

How many boxes of envelopes can you buywith $12 if one box costs $3?

A. 5
B. 4
C. 3
D. 2

Answers

Answer:

4

Step-by-step explanation:

Divide amount of money ($12) by the cost of the box ($3)

12/3 = 4

Answer:

B. 4

Step-by-step explanation:

Divide the amount of money (12) by the cost of the boxes (3). 12 divided by 3 is 4.

Math Can you Help me out? Giving Brainliest, can you also explain your answer

Answers

Answer:

Only 5

Step-by-step explanation:

You just place each in. The one that fits in the equation is the right one.

11-5=6 and 6 is less than 7.

11-3=8 and 8 is greater so it doesn't work.

Answer:

its x=5

Step-by-step explanation:

You just place each in. The one that fits in the equation is the right one.

11-5=6 and 6 is less than 7.

11-3=8 and 8 is greater so it doesn't work

This year Jose watched 80 movies. He thought that 72 of them were very good. Of the movies he watched, what percentage did he rate as very good?

Answers

Answer: 90%

Step-by-step explanation: I hope this helps

The answer to this question is 90%

Answer please!!!!!!! I APPRECIATE IT THANKS

Answers

I believe it’s C. D wouldn’t make sense because the answer has to be negative.

answer this pleaseeee​

Answers

Answer:correct proportion is: 4/6=9/x

Step-by-step explanation:

Find an equation for the perpendicular bisector of the line segment whose endpoints
are (3,5) and (-9, -1).

Answers

y=-0.5x-6.5 i think but i could be wrong for the y-intercept

Which equation below could describe the graph shown?

Answers

Answer:

3

Step-by-step explanation:

I dont really know how to explain it sorry

(3) y = x - 2 describes the graph

PLEASE ANSWER ASAP !!!!!

Answers

Answer:

it would be -4<x< inf which is B

The answer is B. It’s greater/equal because the dot is filled in. Domain means how much the lines spans across the x axis, and since the line has no end it will go on forever, or until infinity.

If a machine that prints designs on T-shirts prints 500 shirts in 3 hours, how many hours will it take to print designs on 1,800 shirts?
A.
6

B.
9.8

C.
10.8

D.
12

Answers

Answer:

The answer is D. 12

Step-by-step explanation:

In 3 hours, it prints 500 shirts. That means 6 hours it will print 1,000 shirts, in 9 hours it will print 1,500 shirts, and in 12 hours, it will print 2,000 shirts. So in 12 hours, it will print 1,800 shirts.

Work out the value of R. Give your answer in standard form to an appropriate degree of accuracy.

Answers

Answer:

R = 8,228,571.43 (Approx)

Step-by-step explanation:

Given:

R = x²/y

x = 4.8 x 10⁵

y = 2.8 x 10⁴

Find:

Value of R

Computation:

R = x²/y

R = (4.8 x 10⁵)²/ (2.8 x 10⁴)

R = 23.04 x 10¹⁰ / (2.8 x 10⁴)

R = 8.22857.. x 10⁶

R = 8,228,571.43 (Approx)

Answer:

8.2x10^6

Step-by-step explanation:

During the Little League state tournament, there were 1,980 fans at the first game. At the second game, there were 2,540 fans. Which is the total number of fans at the two games?
​

Answers

Answer:

just add

Step-by-step explanation:

4520

welcome......

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