please help with this question?!

Answer:

640

Step-by-step explanation:

Since 15 out of every 75 fish are more than 30 cm long, the probability of finding a fish more than 30 cm is P(x > 30) = 15/75 = 1/5.

The probability of finding a fish 30 cm or less is P(x ≤ 30) = 1 - P(x > 30)

= 1 - 1/5

= (5 - 1)/5

= 4/5

Since we have 800 fish and the probability of finding a fish 30 cm or less is P(x ≤ 30) = 4/5, then the number of fish in the population that are 30 cm or less in length are 800 × P(x ≤ 30) = 800 × 4/5

= 160 × 4

= 640

So, 640 fish in the population are 30 cm or less in length

Answer:

Step-by-step explanation:

Given triangles:

Verify the ratio of corresponding sides:

Since the ratios are same, the triangles are similar

Answer:

Option A,  9b + 10s is correct

Step-by-step explanation:

The complete question is

At cycle and sport customers can rent bikes, electric scooters, kayaks, canoes, or paddleboards by the hour. Ari is renting a bi ke, and meg is renting an electric scooter. Which expression represents the total cost for Ari to rent a bike for b hours and Meg to rent a scooter for s hours (Please answer ASAP) A. 9b + 10s B. 9 + 10 C. (9+b) + (10 + s) D. 9 + 10 x b + s  

Solution

The price of renting a bike for one hour is $9

The price of renting a scooter for one hour is $10

Given -

Ari rents a bike for b hours and Meg rents a scooter for s hours

Total cost of renting a bike is 9 * b

Total cost of renting a scooter is 10* s

The total cost of renting both the bike and scooter is

9b + 10s

Hence, option A is correct

Answer:

I think its -19.9

Step-by-step explanation:

just break it down :)

New coordinates are (-1, -9) Hope this helps!

Answer:

$54

Step-by-step explanation:

Total cost = ticket cost  +  parking cost:

    C(x)      =  $30             +   ($3/hr)x

An 8-hour stay would cost:

      C(8)        =    $30 + ($3/hr)(8)   =   $54

If I'm not wrong it should be 180 degrees and a translation of 1 unit down.

Answer:

area = 432 ft²

Step-by-step explanation:

area = 1/2(B1 + B2)(H)

area = 1/2(20 + 16)(24) = 432 ft²

You have to double 1 and 50 to get 2 and 100

1:50 = 2:100

1x2=2

50x2=100

So the statement, if she studied for 2 hours, she would have gotten 100%,  makes sense

Hope this helps!

Answer:

c

Step-by-step explanation:

The Africans gained a majority in the Parliament

A key step that led to the independence of Ghana in the year 1957 is that Africans gained a majority in the parliament.

Ghana became an independent country in the  year 1957. Ghana is a West Africa country with a general population of about 31 million people and it is a black nation.

A key step that led to the independence of Ghana in the year 1957 is that Africans gained a majority in the parliament.

Learn more about Ghana: https://brainly.com/question/4318962?r

Answer:

Number of facies + number of vertices = number of edges + 2

Step-by-step explanation:

Answer:

51

Step-by-step explanation:

It's D. the median for town A, 30, is less than the median for town B, 40.

The median for town A at 30° is less than the median for town B at 40°.

So, option (D) is the correct answer.

The median is the "middle" of a sorted list of numbers. To find the median, place the numbers in value order and find the middle number".

For the given diagram,

Town A has temperatures = 20°, 30°, 40°

Town B has temperatures = 30°, 40°, 50°

The median of A = 30°

The median of B = 40°

Hence, From the above values, the median for town A at 30° is less than the median for town B at 40°.

Hence, we can conclude that option (D) is the correct answer.

Learn more about median here

brainly.com/question/16949317

#SPJ7

Answer:

m=−4.538462

Step-by-step explanation:

Step 1: Flip the equation.

1.3m−2.1=−8

Step 2: Add 2.1 to both sides.

1.3m−2.1+2.1=−8+2.1

1.3m=−5.9

Step 3: Divide both sides by 1.3.

1.3m

1.3

=

−5.9

1.3

Answer: -4.538

Step-by-step explanation: -8=1.3m-2.1

add 2.1 to both sides to get  1.3m=-5.9

divide both sides by 1.3 to get -5.9/1.3

-4.538

Check

1.3(-4.538)-2.1=-7.999

round it to equal -8

Answer:

24

(17x-7)

x = 7 + 17

x = 24

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Answer:

It is equivalent to w+w

Step-by-step explanation:

w+w= 2w

Answer:

A w+w

Step-by-step explanation:

because 2w means 2 * w ( 2 times w)

when you multiply 2 time any number, you add that number twice,

exp... 4 times 2 = 4 + 4

therefore 2w is also w+ w

Answer:

Area= 2560      Perimeter= 208

Step-by-step explanation:

Answer:

64 x 40 = 2,560 <------- your area because multiply the two given lengths.

64 + 64 + 40 + 40 = 208 <---------- your perimeter since opposite sides are parallel which means 2 sides are different. So two of both of the different lengths will be your perimeter.

Step-by-step explanation:

Answer:

cube" (and any subsequent words) was ignored because we limit queries to 32 words.

GDE= 55º

Hope this helps!!

Answer:

[tex]4 \frac{1}{9}x[/tex] + [tex]12\frac{1}{3}[/tex] = 0

Step-by-step explanation:

Based on 2x - 9y - 12 = 0

-9y = 12 - 2x

9y = -12 + 2x

y = [tex]-1\frac{1}{3} + \frac{2}{9} x[/tex]

Therefore...

5x - 4y + 7 = 0

5x - 4([tex]-1\frac{1}{3} + \frac{2}{9} x[/tex]) + 7 = 0

5x + [tex]5\frac{1}{3}[/tex]  - [tex]\frac{8}{9} x[/tex] + 7 = 0

[tex]4 \frac{1}{9}x[/tex] + [tex]12\frac{1}{3}[/tex] = 0

Answer:

The equation could be used to determine the number of emails, y, that will be sent for a given round, x, is:

Step-by-step explanation:

To obtain the equation you must know how many emails will be sent in each case, taking into account that Jesse requested that each person copy and send the same email to 4 additional people, then:

How you can see, each round is the same that to multiply the last sent emails by four, so, with the equation selected in the answer we can obtain these results:

In the first round:

In the second round:

In the third round:

And, in the fourth round:

By this reason, the equation y = 4^X is the correct answer.

Step-by-step explanation:

I hope the answer helps u dear

Answer:

12.57

Step-by-step explanation:

the division wiil be as 33 ÷3 =11 bags and she wil have 2 remained cookies she should eat them

Answer:

just multiply these decimals ....

multiply... 5.4×14.2×26.5