Mathematics High School

The number of birds in a forest is decreasing by 3% every
year. If in one year it has 5400 birds, how many birds will be
there in 7 years? Round to the nearest whole number.
birds

Answers

Answer 1

Answer:

4266

Step-by-step explanation:

Okay! let's start with finding what 3% of 5400 birds is

3% is .03 as a decimal. We can find 3% of 5400 by multiplying 5400 by .03

5400×.03= 162

If our rainforest is losing 3% a year, that means we are losing 162 birds a year.

Let's turn it into an equation! x will be the number of years

5400-162x= number of birds left after x years

Now put 7 in for x

5400-(162×7)= 4266 birds

Hope this helps!

AbbyMay :)

Related Questions

3x^3+10x^2+7x divided by x+1

Answers

your answer is

3x^2 + 7x

i’ve attached the work in the picture

Write your answer in scientific notation.
(6.4×10^3)+(5.2×10^4)​

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In Scientific Notation It Will = 5.84 × 10^4

2 2/3 - 1 1/2 - 4/5
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it would be 45
l hope that helps

perfume is sold in two diffrent sizes of bottle.

Answers

Answer: get the 2 perfums in the size 50ml

Step-by-step explanation:

80ml is 55 pound

50 ml is 45 pound

2nd is half of 45 pound which is 22.5

the 2 perfum in the size 50 ml with the special price is: 45 + 22.5 = 67.5 now per ml is 0.675 pound per ml i found the price per pound by dividing the ml by the price

for the 80ml the price per ml is 0.6875

In triangle PQR, PQ = 8 cm, QR = 6 cm, and mZPQR = 30°.
Exactly how long is PR?
P
8 cm
30°
6 cm
R

Answers

Answer:

PR = 10

Step-by-step explanation:

Pythagoras

hypotenus ² = base² + attitude ²

substitution ; PR² = 6²+8²

PR² = 100

PR = √100

So, PR = 10

hope it helps you ☺️

Find the possible values for m<1

Answers

Answer:

its the last choice

Step-by-step explanation:

you can't find the exact angle with the given info so option 1 is automatic out, m<1 is also clearly an obtuse angle so it will be larger then 90° so option 2 is out, and like I said before m<1 has to be larger then 90° so its not option 3 leaving only option 4

What kind of angles are 1 and 5 in the picture below?

Answers

Answer:

Step-by-step explanation:

I dont see anything. You need to click link and attach a picture or the image to the question

Answer:

You need to add the picture so we can answer

Step-by-step explanation:


a) Write 5.1 x 10^-1as an ordinary number.

Answers

Answer:

0.51

Step-by-step explanation:

Find the value of x. Your answer must be exact.
х
45° 18

Answers

Answer:

x = 63

Step-by-step explanation:

Simplifying

x + -18 = 45

Reorder the terms:

-18 + x = 45

Solving

-18 + x = 45

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '18' to each side of the equation.

-18 + 18 + x = 45 + 18

Combine like terms: -18 + 18 = 0

0 + x = 45 + 18

x = 45 + 18

Combine like terms: 45 + 18 = 63

x = 63

Simplifying

x = 63

Can some answer pls.

Answers

Answer:

E. (7,-2)

Step-by-step explanation:

The answer is E (7,-2) if u look at the graph u can find the answer easily. And remember if u need help ask ur teachers to help you

Clear x.
5x-5 one
———= ——-
X-2 3

Answers

Answer:

5x-5 = 5(x−1)

X-23 = =x−23

Step-by-step explanation: hope this help

Help me please :) .
I’ll mark you as a brainliest.

Answers

Answer: A,C

Step-by-step explanation: I looked it up

Answer:

C and D because Linear means something related to a line.

A carpenter cut a 6 1/2 -ft board into
1 1/4-ft sections. What is the number of sections he cut?

Answers

Answer:

5 pieces

Step-by-step explanation:

Turn this equation into a sentence: 5x - 8 - 7

Answers

Answer:

5 times x minus 8 minus 7

Step-by-step explanation:

whenever you see an x right next to a number, it means that it's being multiplied for that number. For example: 2x mean 2 times x

This symbol - is a minus symbol. So when it's in front of a number, you say "minus" and then the number. For example: 4 - 3 means, Four minus three.

7x - 9 + 2(3 - 2) when x = 8​

Answers

Answer:

49

Step-by-step explanation:

A farmer uses 1/3 of his lànd to plant cassava, 2/5 of the remaining land to o plant maize and the rest for vegetables.
i. What is the total area of the farmer's land?

Answers

Answer:

he has used 53%

Step-by-step explanation:

not enough info to tell you the area

10 pts+ brainliest if correct

Answers

Answer:

C.

Step-by-step explanation:

Answer:

c.

Step-by-step explanation:

Complete the square and write the quadratic equation in vertex form please show steps

Answers

Answer:

Square: [tex](x-10)^{2} -68[/tex]

Vertex: (10,-68)

Step-by-step explanation:

Megan and her little sister, Nora, counted their Halloween ca 20 out of the 50 candy pieces were taffy. In Nora's bag, 11 out of the 25 pieces were taffy. Who got the greater ratio of taffy to total candy pieces?

Answers

Answer:

i think megan

Step-by-step explanation:

Answer:

Im pretty sure Nora has a better ratio of candy

please help√√√:-) 1111

Answers

Answer: 1246 for the first and 1400 for the second

Step-by-step explanation:

The slope of the line below is 5. Which of the following is the point-slope form
of the line?
(-1,3)
5
A. y + 3 = -5(x - 1)
B. y + 3 = 5(x - 1)
C. y - 3 = 5(x+1)
D. Y-3 = -5(x + 1)

Answers

The point-slope form of the line in the graph is y-3 = 5(x+1). The correct option is C.

What is the point-slope form of the line?

The point-slope form of the line is y-y₁ = m( x-x₁)

Here, m is the slope of the line.

The graph given in the question has a slope of 5

It passes through the point ( -1,3)

The point slope form of the line is

y - 3 = 5 ( x - (-1))

y-3 = 5(x+1)

This is represented by option C.

To know more about the Point-slope form of the line

https://brainly.com/question/12743204

#SPJ2

15(2x+2)=10(3x+4) equations with special cases

Answers

Answer:

no solution

Step-by-step explanation:

15(2x+2)=10(3x+4)  Distribute.

30x+30=30x+40     Subtract 30x from both sides.

-30x       -30x

30=40

30 does not equal 40, so there is no solution.

Hope this helps!! Have a great day C:

The ratio of ebooks to novels is 4:5. if there are 32 ebooks how many novels are there?

Answers

Answer:  40 novels

================================================

Work Shown:

n = number of novels

(32 ebooks)/(n novels) = 4/5

32/n = 4/5

32*5 = n*4 ............ cross multiply

160 = 4n

4n = 160

n = 160/4 .............. dividing both sides by 4

n = 40

There are 40 novels.

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Answers

Answer:

144

Step-by-step explanation:

write out the 18 and the 48 times tables until you find the smallest number that is in both times tables. and there's your number :)

I need help solving this equasion

Answers

70+60+x=180
130+x=180
X=50
Angles 60°, 70° and y form a straight line.
Angle on a straight line is 180°
So to get y it will be 180°-(60°+70)
Which is equal to 180°-130°= 50°
Y= 50°
Y and x are vertically opposite angles and vertically opposite angles are equal so therefore x=y and y=50° so x is also equal to 50° or also to find x you could do the same method as the way to find y. Angles 60°, 70° and x form a straight line. So 180°- (60°+70°)= 180°-130°=50°
X=50°.

help
please i’ll mark brainliest

Answers

Answer:

d

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

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Step-by-step explanation:

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Answers

Answer:

B, E

Step-by-step explanation:

2:9 is the simplified ver. of 4:18

8:36 is 2x 4:18

(NOT C: Included because the order does matter and this is a common mistake.)

Answer:

2:9 and 8:36 are the two ratios that are equivalent to 4:18

When she is done exploring the reef, she ascends at a rate of 5 feet per minute. Once she reaches a height of -30 feet, she must rest for 15 minutes to allow her body to adapt to the changing water pressure. She then continues to the surface at the same rate. How long will it take the diver to reach the surface?

Answers

Answer:

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Answers

Answer:

I think A

Step-by-step explanation:

sorry if it is not correct hope it helps

Answer:

I cant see the numbers clearly but I think its 24

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