In 1979, zoologists estimated the number of fish in a local pond to be about
540. In 1989, 10 years later, the zoologists estimated that the number of
fish had increased to 990. Assuming that the fish population increased
linearly, how many fish lived in the pond in 1986? *
ann

Answers

Answer 1

Answer:

693 fish

Step-by-step explanation:

In 10 years, we can tell that the amount of fish increased by 1.833...(990 divided by 540) times. If we divide 1.833... by 10, we can find how much the pond increases by yearly. we get 0.1833... If we multiply that by 7 (because the gap between 1986 and 1979 is 7 years), we get 1.2833... So, if we multiply 540 by 1.28333..., we get 693 fish.


Related Questions

A scientist records the number of deer observed in three areas of a forest. The table shows her observations. Area A 18 miles 162 deer. Area B 17 miles 153 deer. Area C 26 miles 234 deer. How many deer per square mile did the scientist observe in the forest?

Answers

9 deer per square mile

There are 9 deer per square mile because once you add all of the miles together it equals 61. Then you add all of the deer seen together equaling 549. You then divide 549 by 61 equaling 9.

-0.56x+0.26x=6’6
?x=6.6
X=6.6
___

X=??

Answers

-0.56+0.26
-0.3x=6.6
X=6.6/-0.3
X=6.3

Answer:

x = -22

Step-by-step explanation:

Solving in steps:

-0.56x+0.26x=6.6-0.3x = 6.6x = 6.6/(-0.3)x = -22

Need help ASAP!! Convert this rational number
to its decimal form and round
to the nearest thousandth.

Answers

Answer:

0.167

Step-by-step explanation:

Converting it to decimal form would be :0.16666667

Rounding it to the nearest thousands would be the 3rd decimal place. Round it up to be 0.167

The midpoint of AB is M(1,-2). If the coordinates of A are (-3, -8), what are
the coordinates of B?

Answers

Answer:

Step-by-step explanation:

(x - 3)/2= 1

x - 3 = 2

x = 5

(y - 8)/2 = -2

y - 8 = -4

y = 4

(5, 4) coordinates for B

The coordinates of B are (5, 4) if the midpoint of AB is M(1,-2). If the coordinates of A are (-3, -8),

What is an ordered double?

It is defined as a representation of coordinates in a two-dimensional coordinate plane. It has a list of two elements in it, such as (x, y).

[tex]\rm Area = |\dfrac{(x_1y_2-y_1x_2)+(x_2y_3-y_2x_3)....+(x_ny_1-y_nx_1)}{2}|[/tex]

It is given that:

The midpoint of AB is M(1,-2). If the coordinates of A are (-3, -8).

Let the coordinate of B is (x, y)

From the midpoint theorem:

(x - 3)/2= 1

x - 3 = 2

x = 5

For y coordinate:

(y - 8)/2 = -2

y - 8 = -4

y = 4

(5, 4) coordinates for B

Thus, the coordinates of B are (5, 4) if the midpoint of AB is M(1,-2). If the coordinates of A are (-3, -8),

Learn more about the order double here:

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6) The rectangle below has a perimeter of 46. Find its area:

Answers

Answer:

Step-by-step explanation:

Perimeter= 46

Area of rectangle= Length * Width

Ratio                    =       2 : 1

= Length= 2/3 * 46 = 30.6/2 = 15.3

Width = 1/3 * 46 = 15.3/2 = 7.65

Area= 117.045

A package of 4 pairs of insulated gloves costs $31.16. What is the unit price of the pairs of gloves?
The unit price is $ per pair of gloves.

Answers

Answer:

$7.79 per pair of gloves

Step-by-step explanation:

divide

31.16÷ 4 = 7.79

To the nearest hundredth, what is the distance between point (5, 1) and point (6, 8)?

Answers

Answer:

it is 5/2

Step-by-step explanation:

Answer:

7.07

Step-by-step explanation:

See image for explanation

If the statement is rewritten as a conditional statement in if-then form, which best describes the hypothesis?
Two lines in a plane intersect at a point
A. Two lines in a plane intersect
B. Two lines intersect at a point
C. A point exists
D. Points are in a plane

Answers

The statement "Two lines intersect at a point" is a correct option (B) that would be the best choice.

What are the null hypothesis and alternative hypothesis?

The null and alternative hypotheses are two generalizations about a population that are strictly contradictory. The null hypothesis can be denoted by H₀ and the alternative hypothesis can be denoted by H₁.

It is given that:

If the statement is rewritten as a conditional statement in if-then form.

As we know,

From the definition of the hypothesis.

The null and alternative hypotheses are two generalizations about a population that are strictly contradictory

The hypothesis is best described as two lines intersecting at a point if the original sentence is restated as a conditional statement in the if-then format.

Thus, the statement "Two lines intersect at a point" is the correct option (B) that would be the best choice.

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Answer:

B

Step-by-step explanation:

13. To enter the play area, children must be more than 4 feet tall.

Answers

Answer:

Is this full qn ?. I don't think sooo.

Rewrite 4 x 4 x 4 x 8 x 8 using exponents PLEASE ASAP ILL NAME BRAINLIEST AND 15 POINTS

Answers

Answer:

4^3 and 8^2

Step-by-step explanation:

Answer:

12

2

Step-by-step explanation:

4 × 4 × 4 × 8 x 8

Solution:

2 2 2 3 3 2+2+2+3+3

2 x 2 x 2 x 2 x 2 = 2

12

2

2 raised to the 12 power

Which graph shows the image being rotated 90°?

Answers

You forgot to put an image

Answer:

There is no picture, my sweetheart.

Step-by-step explanation:

9x + 5 - 3x = 5x - 14

Answers

Answer: The answer is x = -19

Answer:

-19

Step-by-step explanation:

9x - 5x -3x = -14 -5

1x = -19

2
45:47
3
4
5
6
7
8
9
10
Vince weighs 160 pounds, and his friend Nadir weighs 140 pounds. Nadir calculated that his weight on another
planet would be about 56 lb. Approximately what would Vince weigh on the other planet?
40 lb
64 lb
76 lb
90 lb
Submit
Neyt

Answers

Answer:

76

Step-by-step explanation:

140-56= 84

140-84=56

160-84=76

24 t0 the power of 25th

Answers

Answer:

[tex] {24}^{25} = 3.201 \times {10}^{34} [/tex]

What's more selfish? Committing Death or forcing someone to stay in a world where they are so unhappy?

Answers

Answer:forcing someone to stay in the world they dont wanna be in

Step-by-step explanation:

Forcing someone to stay in a world they are unhappy in.

What’s the value of 2^3? If you could explain that’d be amazing

Answers

Answer:

8

Step-by-step explanation:

2 (2)(2)

2 times itself 3 times.

Answer: 8

Step-by-step explanation: Since 2 is to the power of 3 that means multiply by itself 3 times, so 2 x 2 x 2 = 8.

If this helped please mark Brainliest!!!

simplify 1/3(6x−12)+4x

Answers

Answer:

não sei....................

Graph an Integer on a Number Line
Graph -4 on a number line. Then graph 8/2 on a number line. Which one
is greater????

Answers

Answer:

8/2

Step-by-step explanation:

My answer is B im sure im wrong ;-;

Answers

The answer is I think it’s A. 60 degrees is 1/6 of 360 so the answer should be 1/6of the perimeter. The perimeter is 24 pi so it should be 4 pi or 12.something

Answer:

12.56

Step-by-step explanation:

find the circumference of the circle : 2πr

C=2(12)(3.14)

C=75.36

the length of the arc is: arc length will be (60/360) one 1/6 of the total circumference.

(60/360)(75.36)= 12.56

Your cell phone plan costs ​$29.99 per month plus ​$0.17 for each text message you send or receive. You have at most ​$34 to spend on your cell phone bill. What is the maximum number of text messages that you can send or receive next​ month? (with step by step solution).

Answers

Answer:34.00-29.99=4.01. 4.01÷0.17=

Step-by-step explanation:

Edwardo has $24 saved. If he saves $8 each week, how much money will he have in 5 weeks ?

Answers

Answer:

64$

Step-by-step explanation:

Ifshe saved 8$ each week then that would equal to 40

But by adding the 24$ already saved the total amount would equal to 64$

distributive 8 (-b-4)

Answers

Answer:

-8b -32

Step-by-step explanation:

8 (-b-4)

Distribute

-8*b -4*8

-8b -32

A square has an area of 9 cm what is it's side length ​

Answers

Answer:

A=3

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

itttttttttttttt isssssssssss =3

2/5(x-9)=-8














I don’t get it

Answers

Answer:

-11=x

Step-by-step explanation:

2/5x-3.6 is the simplified when you DISTRIBUTE 2/5 multiplying both parts of the parentheses. Add 3.6 to both sides 2/5x=-4.4 then 2x=-22, x=-11

What is the sum of 2/3 + (-1/3) in fraction form?

Answers

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{ \frac{1}{3}}}}}} [/tex]

Step-by-step explanation:

[tex] \sf{ \frac{2}{3} + ( - \frac{1}{3} )}[/tex]

We know that [tex] \sf{( + ) \times ( - ) = ( - )}[/tex]

[tex] \dashrightarrow{ \sf{ \frac{2}{3} - \frac{1}{3}} }[/tex]

While performing the addition or subtraction of like fractions , you just have to add or subtract the numerator respectively in which the denominator is retained same.

[tex] \dashrightarrow{ \sf{ \frac{2 - 1}{3}}} [/tex]

[tex] \dashrightarrow{ \boxed{ \sf{ \frac{1}{3}}}} [/tex]

Hope I helped!

Best regards! :D

The sum of 2/3 + (-1/3) in fraction form is 1/3 after applying the arithmetic operation, the answer would be 1/3.

What is a fraction?

Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.

It is given that:

The number expression is:

= 2/3 + (-1/3)

= 2/3 - 1/3

Taking 3 as LCM

After simplification:

= (2 - 1)/3

= 1/3

Thus, the sum of 2/3 + (-1/3) in fraction form is 1/3 after applying the arithmetic operation, the answer would be 1/3.

Learn more about the fraction here:

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plz help if you can..

Answers

The answer to the equation is n=2 hope this helps .

n = 2

My picture shows my work :)

What is the volume of a book when the length is 42 cm, the width is 12 cm and the height is 4 cm?





What is the mass of a rock if the volume is 54 ml and the density is 3.2 g/ml?





What is the density of a block of wood that has a mass of 38 g and a volume of 19 cm3?





What is the mass of a liquid that has a density of 2.4 g/ml and a volume of 32 ml?












What is the volume of gold with the mass of 1500 g if the density of gold is 19.32 g/ml?





What is the density of a box if the mass is 160 g and the volume is 12 ml?





What is the volume of a shark’s tooth when you start with 75 ml of water in a graduated cylinder and when the shark’s tooth is placed in the water, the water level rises to 90 ml? (use water displacement)





The mass of a pencil is 8 g and the density is 1.24 g/ cm3. What is the volume of the pencil?

Answers

Answer: What is the volume of a book when the length is 42 cm, the width is 12 cm and the height is 4 cm?  2016 (length x width x height)

What is the mass of a rock if the volume is 54 ml and the density is 3.2 g/ml?  172.8 (when finding the mass you always multiply the volume and density so 54ml x 3.2 g/ml = 172.8)

What is the density of a block of wood that has a mass of 38 g and a volume of 19 cm3?  2cm3 (38g/19cm3=2cm3

What is the density of a box if the mass is 160 g and the volume is 12 ml?  13.3 (160/12=13.3)

What is the volume of a shark’s tooth when you start with 75 ml of water in a graduated cylinder and when the shark’s tooth is placed in the water, the water level rises to 90 ml? (use water displacement) 15 (If you measure the amount the water level increases, you can find the volume of the water pushed out of the way.)

The mass of a pencil is 8 g and the density is 1.24 g/ cm3. What is the volume of the pencil? 6.45cm3  (8/1.24/cm3=6.45

Step-by-step explanation:

!!20 POINTS!!
Find AC

Answers

Answer:

A.  12

Step-by-step explanation:

a = -7

b = -4

c = 5

ignore B. counting should be till the desired grid which is C

AC = 7 + 5

AC = 12

Answer: 12

Step-by-step explanation: just count their distance by 1

Haruki has $20 in his savings account. Each
week he will add $5 to it. He wants to draw
a graph that shows how much money is in
his savings account over time, starting with
$20. What is the equation of the line?

Answers

Answer:

y=5x+20

Step-by-step explanation:

It grows by 5 each week with would be the m, the b value would be the amount already saved which is 20.

Answer:

y=5x+20

Step-by-step explanation:

what 2 numbers have a sum of -10 and a difference of -2?

Answers

Answer:

-6 and -4

Step-by-step explanation:

-6 + -4 = -10

-6- - 4 = -2

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