The number of fish in a lake decreased by 25% between last year and this year. Last year there were 60 fish in the lake. What is the population this year? (Consider using a tape diagram)

Answers

Answer 1

45 fish this year
60(0.25)=45

Answer 2

Answer: This population, the population is 45 fish.

Step-by-step explanation: This problem can be solved by a rule of three. Last year there were 60 fish in the lake. That was 100, that is, decimal 1. This year it decreased by 25%. So there 100%-25% = 75%, that is decimal 0.75. So 60 fish - 1 x fish - 0.75. This population, the population is 45 fish.

Related Questions

Select all the ordered pairs that satisfy the function y = 3x -4.

Answers

Answer:

B and D

Step-by-step explanation:

plug in the x and y for the x and y in the equation

if the two sides come out equal to eachother they satify the function

if they dont well they dont satisfy the function

hope this helps <3

Ima give another brainliest

Answers

Answer:

B. 9/50

Step-by-step explanation:

3/7 * 1/10 = 3/70 than you

3/70 divide that by 5/21

3/70 * 21/5 = 63/350

reduce that by 7

9/50

I hope this helps you out!

Factor the expression using the GCF
42+14

Answers

14 is the answer sorry if I get it wrong :/

Solve For X: 8.47 = 5.5 + X

Answers

Answer:

x=2.97

Step-by-step explanation:

Answer:

x=2.97

Step-by-step explanation:

8.47=5.5+x

Step 1: Simplify both sides of the equation.

8.47=x+5.5

Step 2: Flip the equation.

x+5.5=8.47

Step 3: Subtract 5.5 from both sides.

x+5.5−5.5=8.47−5.5

x=2.97

Hope it Helps!

use substitution to solve the system of equations
y=x+1.75
4x-2y=4

A.(4,4)
B.(3.75,0)
C.(3.75,5.5)
D.(5.5,4)

Answers

Its C trust meeeeeeee

brainliest to first:)))

Answers

Answer
y= 8,-4+4i√3,-4-4i√3

hope this helps and have a wonderful day :)

The highest recorded temperature in Yuma, Arizona, was about 51∘C, and the lowest recorded temperature was about −11∘C. What equation can be used to find the difference between the highest and lowest temperatures?

Answers

51.C - 11.C = 40.C

Even though 11 was a negative number we are only looking for the difference between the two so negatives don’t play much part.

51C-11C=40C (couldn’t find degrees)

Anwser the question for brainlist

Answers

Answer:

Step-by-step explanation:

NOT SURE PLEASE TELL ME IF IM WRONG

Answer: 52

Step-by-step explanation:pemdas

A Town is holding a competition for various athlete games. each community has 14 players. there are 112 communities competting in the games. how many players are competting. chose a b c d

a. 1,676
b. 1,568
c. 126
d. 98

Answers

1568 is the answer as 14 x 112 is 1568

1568 14 x 112 = 1568

Need helpp fastt plss will give brainliest to who is correct plss helpp

Answers

2^6, 4^3 (4 cubed) and 8^2 (8 squared)

You jog 2 kilometers in 12 minutes. Your friend jogs 3 kilometers in 16.5 minutes. Who jogs faster?The faster jogger will finish a five-kilometer race ______
minutes sooner than the slower jogger.

Answers

Answer:

1. Your friend.

2. 2.5 Minutes (I think)

Answer:2 or 2.5 i don't know

Step-by-step explanation:

Worth 15 pts.

Choose the correct answer

Answers

Answer:

Its c. c = 50.

Step-by-step explanation:

First, we need to figure out what the equation equals.

7 + 7/7 + 7*7 - 7 = x

PEMDAS

Parentheses, exponents, division/fraction, addition, subtraction.

7/7 = 1. So equation changed into 7 + 1 + 7*7 - 7 = x.

7*7 = 49. So equation changed again into 7 + 1 + 49 - 7.

Lets calculate it. 7 + 1 = 8 + 49 = 57 - 7 = 50. x = 50.

c is the only one who has a calculation of 50.

B. 08 is the answer. Hope it helped merry Christmas

halp plz
brainest for first awnser

Answers

Answer:

Point (2,7) means you take 2 hours to complete 7 jobs

equation y=7/2x

Step-by-step explanation:

Calculate the slope using two points to determine the equation of the line

The answer (25.87)
And it’s really easy

I really need help on this idk how to do this and its due tonight.

Answers

X = (-14)

hope that this helps let me know if you need explanation

X=-14 and I think they’re equal so you just set them equal and get the x to one side and then solve for x

The length of a rectangle is twice the width. The perimeter is 25. The system to help find the length and width is:
L=2W

2L+2W=25

Aaron tried using a graph to find the measurements but was unsure of the exact values. Use substitution to solve the system exactly. Round to the nearest hundreth.

Answers

9514 1404 393

Answer:

(L, W) ≈ (8.33, 4.17)

Step-by-step explanation:

Substituting for L, we have ...

2(2W) +2W = 25

6W = 25

W = 25/6 ≈ 4.17

L = 25/3 ≈ 8.33

The rounded "exact" solution is ...

(L, W) = (8.33, 4.17)

Let the width be x
Since the question mentions the length is twice the width,
let the length be 2x
The total perimeter given is 25cm and as we know, perimeter for a rectangle :
=> P = 2(Length + width)
So,

25cm = 2(2x + x)
25 = 4x + 2x
25 = 6x
25/6 = x
4.166666667 = x

A school held a jump roping contest, Diego jumped rope for 20 minutes . Jada jumped rope for 15 minutes. What percentage of Diego's time is that?

Answers

It should be 75 percent

Who has 4 projects due Friday and hasn't started but you should be

Answers

Answer:

Oof not me but thanks for the free points lol

PLEASE HELP!!! THIS ASSINMENT IS DUE AT 11:59 TODAY AND FORGOT TO SET MY ALARM AND MISSED THIS CLASS! PLSSS HELP!

Answers

This seems to be simple algebra, no problem. I’ll add an image so it’s easier for you to read. :) (simple answer: x=20)

Answer: x=20

Step-by-step explanation:

7x-99=2x+1

5x=100 < i just subtracted 2x from both sides and added 99 to both sides

X=20 < divided by 5 to get this

PLEASE HELP MEEEEEEEEE

Find the equation of a line passing through the point (12,0) perpendicular to the line -4y-3x= 6 . *

1) y= -3/4 x +9

2) y= 3/4 x-9

3) y= 4/3 x- 16

4) y= 4/3 x-8

Answers

Answer:

Step-by-step explanation:

You have to get y by itself. so you add 3x and then divide by negative 4. The only answer is the correct x is -3/4x.

Answer:

1 or A

Step-by-step explanation:

Hope this helps!

help please. this is so complicated. ----> ( lotsssss of pointssss )

show your work !!

whats 9 + 10

Answers

9+10= 19

Just count them together lol :)

Help please ill give brainliest

Answers

B and c it was rotated but also Dilated

If someone tells you your body temperature is 98.6°, what scale is being used? How do you know?

Answers

Answer:

Fahrenheit

Step-by-step explanation:

When I am getting my temperature checked, it is usually checked in Fahrenheit, and my temperature is around 98.6 degrees.

3 more after this please answer

Answers

Answer:

I'm pretty sure its 2.38

Step-by-step explanation:

If you do the math 0.7 times 3.4 you get 2.38

2.38

0.7
3.4
——
2.38

Since they’re 2 decimal places in the problem. Move the answer’s decimal place twice.

PLEASE ITS PAST DUE BUt I NEED IT DONE!!!!

Answers

75 haha because is you add them and the multi so then you take a dish

Constant of proportionality is K=y/x so the answer is 5.

Because the value of 5 is y it’s divided by x which is 1 therefore, 5/1 is your answer.

If I’m late I apologize.... :(

7th grade math ◑〰️◐
help me ples its my sis agen she sint me this ples help her/me
by her /me i mean me helping her

Answers

Answer:

you forgot to attach it

Step-by-step explanation:

The ratio of blueberries to strawberries is 5:6. Which ratio is the same as 5:6?
A. 6:7
B. 10:8
C. 10:12
D. 6:5

Answers

The answer is 10/12 !!!!!

Answer:

The answer is C.10:12

(I do brainliest.) slope intercept form... [show ya work plz]

A line passes through (3, 7) and (6, 9). Which equation best represents the line?

y = 3 over 2x + 5
y = 2 over 3x + 5
y = 3x + 2
y = 2 over 3x + 2

Answers

Answer:

y = 3x+2

Step-by-step explanation:

(3,7) (6,9) Y2=9 Y1=7 X2=6 X1=3

M = 9-7/6/3

2/3

Please answer! :D
A number cube, with number 1 through 6, is rolled and a coin is tossed. What is the probability of rolling an odd number on the cube and tossing a tails on the coin? Write your answer as a fraction in simplest form in the box provided.

Answers

Answer:

Step-by-step explanation:

Simple joint probabilites of two independent event. Probability of a head is 1/2. An odd roll of a die is also 1/2. 1/2 x 1/2 = 1/4 or 0.25.

So an odd roll on the cube is 1/2 and it’s 1/2 of getting tails so the probably is 0.25

Which is the simplified form of m-6 p0? 1/m8p 1/m8 p/m8 m8

Answers

Answer:

Step-by-step explanation:

if you calculate it using the steps, it should give you this.

(I used a math calculator, so i dunno if this is right lol)

There are 3 cats in a room and no other creatures.
Each cat has 2 ears, 4 paws, and 1 tail.

Which of the following is a ratio of tails to ears? (1 point)
A. 1 to 2
B. 2 to 1
C. 2 to 8
D. 8 to 2

Answers

Answer:

Step-by-step explanation:

since there are 1 tails per cat and 2 ears the ratio would be 1:2

Answer:

Step-by-step explanation:

A:1 to 2

2:4:1

1:2:1

1 to 2

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