80% of salmon pass through a single dam unharmed. By what percent does the number of salmon decrease when passing through a single dam?

Answers

Answer 1

Answer:20%

Step-by-step explanation:

Answer 2

Answer: 20%

Step-by-step explanation:


Related Questions

Work out the value of angle x.
Х
110 degree

Answers

Answer:

40 degrees

Step-by-step explanation:

the bottom angles are 70 each because you can find one of them by subtracting 110 from 180 (110 is an exterior angle to one of the bottom sides). The other is also 70 because the triangle is an isosceles. Then, subtract 70*2 from 180 to get 40 degrees for x (the remaining side).

URGENT HELP 30 POINTS

Answers

Answer:The answer is  pride 5

Step-by-step explanation:

Complete the statement to illustrate the commutative property. (PLEASE ANSWER FAST FOR BRAINLIEST!!!)
10 + (9 + 11) = 10 + (11 + ___ )

a. 11
b. 20
c. 9
d. 10

Answers

Answer:

9

--- your answer is 9 oof

9. The answer is C!!!!!!

Please help

look at picture

supplementary angles

Answers

180-71= 109 (2x-3)=109 109+3=112 112/2=56 x=56

Answer:

x=56

Step-by-step explanation:

(2x-3)degrees+71 degrees=180 degrees because they are supplementary angles

This simplifies to 2x+68=180 because -3+71 is 68.

2x+68=180

2x=180-68

2x=112

x=112/2

x=56

The first step when multiplying fractions is to find the reciprocal of the second fraction.
O True
O False

Answers

The first step when multiplying fractions is to multiply the two numerators. The second step is to multiply the two denominators answers is: False

The first step when multiplying fractions is to find the reciprocal of the second fraction.

The statement is False.

The first step when multiplying fractions is to find the reciprocal of the second fraction.

The given statement is FALSE.

Because, First step in multiplying fractions is multiply the numerator from each fraction. That is, multiply the top number first.

Learn more about multiplying fractions at:

https://brainly.com/question/33169891

#SPJ2

Need help on only 27 please need ASAP thanks

Answers

Answer:

8 is not in the solution set

Step-by-step explanation:

Given, -y + 7 < -4

To find out if 8 is in the solution set, substitute y = 8 in the inequality and solve to see if the statement would be true.

Thus:

-8 + 7 < -4

-1 < -4

This -1 is less than -4. This is actually not TRUE. -1 is rather greater than -4.

Therefore, 8 is not in the solution set.

A system of equations where both X and Y cancel and you are left with just a number is called

Answers

Elimination method I think not completely sure

Find the a10 for the sequence a n =(3)(2)^ n

Answers

The answer would be 1536

Please help meeeeeeeeeeeeeeeeee

Answers

Answer:

The answer is A.

Step-by-step explanation:

what is 1000000000÷10?

Answers

Answer:

Step-by-step explanation:

If you're dividing a number by 10, just remove one zero, so we have: 1000000000÷10 = 100000000.

Answer: 100,000,000

Step-by-step explanation:

1,000,000,000/10 = 100,000,000

algebra
3(x — 5) + 2(3х + 1) = 45

Answers

Answer:

Step-by-step explanation:

Work out the value of 3 \times(3^2 + 4) - 83×(32+4)−8.845

tan a= 12/15, a lies in quadrant 3, and cos x= -20/29, x lies in quadrant 2. find sin (a+x).
a) 345/377 b) 135/377 c) -152/377 d) 352/377

Answers

Answer:

c) -152/377

Step-by-step explanation:

yan po ang tamang sagot ko..

Find the quotient: 68/6

Answers

Answer:

The answer is 11. 2 is the remainder

Step-by-step explanation:

hope this helps

It takes 26 pounds of seed to completely plant a 4-acre field.
How many acres can be planted per pound of seed?

Answers

Answer:

0.153846154

Step-by-step explanation:

26 pounds for 4 acres

1 pound will need less acres

Is x = -4 a solution to these equations? Show your work and write YES or NO.

1. 3(2x-4) = -36
2. 5x - 6x - x = 18
3. 5 - 2(3x - 1) = 31

Answers

Answer:

1. Yes

2. No

3. Yes

Step-by-step explanation:

We have three equations where x is equal to -4. We are then asked if -4 are a solution to these equations.

To solve we need to substitute the x in every equation for -4. Start :

1.

3(2(-4) - 4) = -36

3(-8 - 4) = -36

-24 - 12 = -36

Therefore -4 is a solution.

2.

5(-4) - 6(-4) - (-4) = 18

-20 + 24 + 4 = 18

4 + 4 = 18

8 ≠ 18

Therefore -4 is not a solution.

3.

5 - 2(3(-4) - 1) = 31

5 - 2(-12 - 1) = 31

5 - 2(-13) = 31

5 + 26 = 31

Therefore -4 is a solution.

how do you solve 0.7n-1.5+7.3n=14.5​

Answers

Answer:

n = 2

Step-by-step explanation:

Answer:

n = 2

Step-by-step explanation:

0.7n-1.5+7.3n=14.5​

Add like terms

(0.7n + 7.3n) + (-1.5) = 14.5

8n -1 .5 = 14.5

Add 1.5 to both sides.

8n =1 6

Divide both sides by 8.

n = 2

A 50-meter vertical tower is braced with a cable secured at the top of the tower and tied 30 meters from the base. What is the angle of depression from the top of the tower to the point on the ground where the cable is tied?​

Answers

Answer:

angle of depression = 59.04 degrees

Step-by-step explanation:

tangent X = 30/50

tangent X = 0.6

x = 30.96 degrees

90-30.96 = 50.04 degrees

Answer:

Step-by-step explanation:

θ = arctan(50/30) ≈ 59°

Calvin saved 1/4 of the price of the car he wanted to buy which fraction is 1/4 A 2/12
B 5/20
C 2/16
D 5/25

Answers

Answer:

1/4 = 5/20

Step-by-step explanation:

1/4 = 5/20

Answer:

Step-by-step explanation:

1/4 is equivalent only to B (5/20).  To check this, try dividing 20 into 5 with a calculator; you should get 0.25 = 5/20

Easton is driving to a concert and needs to pay for parking. There is an
automatic fee of $8 just to enter the parking lot, and when he leaves the lot,
he will have to pay an additional $3 for every hour he had his car in the lot.
How much total money would Easton have to pay for parking if he left his car
in the lot for 2 hours? How much would Easton have to pay if he left his car in
the lot for t hours?

Answers

Answer:

If he left the car in the lot for 2 hours, he would have to pay 14 dollars. if he left it for "t" hours, he would have to pay 11 + 3t dollars

Step-by-step explanation:

Think of it like this: "a" represents the total amount of money Easton will spend, t represents time in hours. $11 + $3*t = a

For 2 hours he would pay $14
8+(3*2) =14

For t hours
8+ 3t

Kevin draws out one M&M without looking.

· What is P(green)?


· What is P(red)?


· What is P(~Yellow)?


· What is P(~Orange)?

Answers

Answer:

1/6

Step-by-step explanation:

M&M comes in 6 colors.

So, P(green), = 1/6

P(red) = 1/6

· P(Yellow) = 1/6

· P(Orange) = 1/6

The baker's recipe for a loaf of bread calls for 12 ounces of flour. If he uses all of his flour to make loaves of bread, how many full loaves can he bake in two weeks?

Answers

Answer:

not enough info. how much flour does he have to begin with? how much does he use per day?

Step-by-step explanation:

PLEASE HELP GEOMETRY

Answers

Answer:

Step-by-step explanation:


What is the area of a circle with a diameter of 34 mi? Use 3.14 for n
O 213.52 mi2
0907.46 mi2
O 106.76 mi2
0 3629.84 mi2

Answers

Answer:

907.46

Step-by-step explanation:

diameter = 34

radius = 17 (half of diameter)

A=πr^2

HOPE THIS HELPS PLZ MARK BRAINLIEST! :)

Many fire stations handle emergency calls for medical assistance as well as those requesting firefighting equipment. A particular station says that the probability that an incoming call is for medical assistance is 0.81. This can be expressed as P(call is for medical assistance)

Answers

Answer: The is down there

Step-by-step explanation: Glad to help but hope it helps you.

are squares parallelograms

Answers

yes because it has 4 sides

9514 1404 393

Answer:

  yes

Step-by-step explanation:

A parallelogram is a quadrilateral with opposite sides parallel. A square is such a quadrilateral, so a square is a parallelogram.

_____

A rhombus is a special case of parallelogram in which adjacent sides are the same length.

A square is a special case of rhombus in which the angles are 90°. Hence a square is a special case of parallelogram.

__

An alternate route to the same conclusion is ...

A rectangle is a special case of parallelogram in which vertex angles are 90°.

A square is a special case of rectangle in which adjacent sides are the same length. Hence a square is a special case of parallelogram.

Bella makes 579 bracelets to sell. She wants to pack the bracelets into 12 boxes. 50 bracelets are packed into each of the first 11 boxes. How many bracelets will be packed into the last box?

Answers

50x11=550
579-550=29
29 bracelets will be in last box

How many ways are there to add three positive even numbers to get a sum of 20? Solve this
problem by making a systematic list, then state your solution.

Help!!!!! can you show your work too thanks

Answers

Answer:

no entender veri mucho......aaaa

What is the value of x?

Answers

Answer:

98%

Step-by-step explanation:

Help please! Could you explain it too?

Answers

Answer:

a) not proportional

b) proportional; k = [tex]-\frac{3}{5}[/tex]

Step-by-step explanation:

a) for any proportional equation, the line must pass through the origin. The equation in a) is y = 4x + 1, and the '+1' is the y-intercept. This means that the line does not pass through the origin, so x and y cannot increase by the same amount (i.e. they are not proportional).

Another way to determine this is is to use the y = kx base. If you have an equation that fits that it's likely proportional.

Here, if the equation was only y = 4x then it'd be proportional because u can see that k = 4. This is not the equation though, and the 4x + 1 doesn't fit to the y = kx formula so it can't be proportional.

b) straight away you can see that there's no 'c' term (y = mx + c) which means the y-intercept is 0, so the line passes through the origin. While this does not immediately mean the line is proportional, you can make sure that it is by checking it fits with the y = kx equation.

y = -(3/5)x fits with y = kx, with k being -3/5

Find the volume of the rectangular prism. 4 in 3 [in 4 in 4 in​

Answers

Answer:

12

Step-by-step explanation:

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