PLEASE HELP am really struggling with this subject

Answer:

Step-by-step explanation:

7 hr/3 pumps

So first we want to find the unit rate which would be...

5.25 hr/1 pump

Now that we found the unit rate we are going to multiply it by 2 because there are 2 pumps...

5.25*2=10.5

So our answer is 10.5 hr/ 2 pumps

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Answer:

The answer is D!

Step-by-step explanation:

hope this helps

Answer:

Ok I will help you

Answer:

7/12 are choclate and 3/12 were vanilla

Step-by-step explanation:

Answer:

it is 3mm i had the test

Step-by-step explanation:

edge 2021

Answer:

3mm! -w-

Step-by-step explanation:

Answer:

Step-by-step explanation:

The angle we are given is 2° and we are given the opposite leg, 135 ft. We are trying to find the hypotenuse length- the diagonal distance from the ship to the lighthouse.

So, we use SOHCAHTOA with sine:

[tex]sin(2)=\frac{opp}{hyp}= \frac{135}{x}[/tex]

[tex]x = \frac{135}{sin(2)} = 3868.251 ft[/tex]

Keep in mind that the angle is in degrees. Also, the number is large because of the extremely short angle.

The ship is  3857.1 feet away from the lighthouse.

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.

We can use the tangent function to solve this problem.

Let x be the distance between the ship and the lighthouse, then we have:

tan(2º) = opposite / adjacent

tan(2º) = 135 / x

To solve for x, we can multiply both sides by x and then divide both sides by tan(2º):

x = 135 / tan(2º)

x = 3857.1

Therefore, the ship is  3857.1 feet away from the lighthouse.

To learn more on trigonometry click:

https://brainly.com/question/25122835

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i think the question is not correct write it again or attach the pic ic

The mean of a data set is the sum of all data elements divided by its count.

The mean weight of the 19 girls is 33.4 kg

Let

[tex]b \to[/tex] boys

[tex]g \to[/tex] girls

[tex]n \to[/tex] the total population

So:

[tex]b = 11[/tex]

[tex]\bar x_b = 31.9[/tex]

[tex]g = 19[/tex]

[tex]n = 30[/tex]

[tex]\bar x = 32.85[/tex]

The mean of all students is calculated as follows:

[tex]\bar x = \frac{\sum x}{n}[/tex]

So, we have:

[tex]\bar x = \frac{\bar x_b \times b + \bar x_g \times g}{n}[/tex]

Substitute known values

[tex]32.85 = \frac{31.9 \times 11 + \bar x_g \times 19}{30}[/tex]

[tex]32.85 = \frac{350.9 + \bar x_g \times 19}{30}[/tex]

Multiply through by 30

[tex]30 \times 32.85 = 350.9 + \bar x_g \times 19[/tex]

[tex]985.5 = 350.9 + \bar x_g \times 19[/tex]

Collect like terms

[tex]985.5 -350.9 = \bar x_g \times 19[/tex]

[tex]634.6 = \bar x_g \times 19[/tex]

Divide through by 19

[tex]33.4 = \bar x_g[/tex]

[tex]\bar x_g = 33.4[/tex]

Hence, the mean weight of the girls is 33.4 kg

Read more about mean at:

https://brainly.com/question/2018505

Answer:

Step-by-step explanation:

common factor of 2a² and 10ab= 2a

Answer: 50%

Step-by-step explanation:

In 2010 the percentage of fatal accidents was 16%.

This is 34% less than it was in 2000 because the text says that the 2010 percentage was 16% after being reduced by 34% from 2010.

The percentage of fatal accidents in 2000 is therefore:

= 2010 fatal percentage + Percentage reduced from 2000

= 16% + 34%

= 50%

Find the product:-

[tex] \tt \dfrac{18}{30} \times \dfrac{5}{4} [/tex]

[tex] = \tt \dfrac{18 \times 5}{30 \times 4} [/tex]

[tex] = \tt \cancel\dfrac{18 \times 5}{30 \times 4} = \boxed{\tt\dfrac{ \: \: 3 \: \: }{4}} \: \: \: \: \: \: \: \: \: [/tex]

Multiply:-

[tex] \tt4 \: \dfrac{1}{8} \times \dfrac{1}{9} [/tex]

[tex] = \tt \dfrac{25}{8} \times \dfrac{1}{9} [/tex]

[tex] = \tt\dfrac{25}{8} \times \dfrac{1}{9} [/tex]

[tex] = \tt \cancel\dfrac{25 \times 1}{8 \times 9} = \cancel{ \tt\dfrac{ \: \: 25 \: \: }{72}} [/tex]

[tex] = \boxed{\tt\dfrac{ \: \: 1 \: \: }{3 }} [/tex]

Find the product:-

[tex] \tt \dfrac{15}{18} \times \dfrac{6}{9} \times \dfrac{27}{21} [/tex]

[tex] = \tt \cancel\dfrac{15 \times 6 \times 27}{18 \times 9 \times 25} [/tex]

[tex] = \boxed{\tt \dfrac{ \: \: 5 \: \: }{7}} [/tex]

Multiply:-

[tex] \tt \: 3 \: \dfrac{7}{70} [/tex]

[tex] = \tt \cancel\dfrac{3 \times 7}{1 \times 70} = \boxed{ \tt\dfrac{ \: \: 3 \: \: }{10}} [/tex]

Solve:-

[tex] \tt(6 \times \dfrac{1}{4}) \times \dfrac{1}{2} \times \dfrac{1}{2} [/tex]

[tex] = \tt \cancel{( \dfrac{3 \times 1}{1 \times 2} )} \times \dfrac{1}{2} \times \dfrac{1}{2} [/tex]

[tex] = \tt(\dfrac{3}{ \: \: 2 \: \: }) \times \dfrac{1}{2} \times \dfrac{1}{2} [/tex]

[tex] = \tt\dfrac{3}{ 2 } \times \dfrac{1}{2} \times \dfrac{1}{2} \: \: \: \: \: \: \: \: = \boxed{ \tt \dfrac{ \: \: 3 \: \: }{8}} [/tex]

Answer →→→→ 12

Hope this helps you

God bless

Answer:

18a^7

Step-by-step explanation:

Answer:

x=-2

Step-by-step explanation:

2 = 3x+14/4

2x4 = 4x4    4 cancels

8 = 3x+14

8-14 = 14-14    14 cancels

-6 = 3x

-6/3 = 3/3   3 cancels and you're left with x

-2=x

Answer:

Step-by-step explanation:

[tex]\frac{6}{\frac{3}{4}}\\ \\ 6\left(\frac{4}{3}\right)\\ \\ 8\ pieces[/tex]

Answer:

16.67% less

or

she only made 83% of her anticipated $18,000

Step-by-step explanation:

3000/18000 = 0.1666 or 16.67% less

15000/18000 = 0.8333 or 83%

Answer:

im doing that too </3 plz

Step-by-step explanation:

Answer:

− 6 ≤ y < 2

Explanation:

Move all terms not containing y  from the center section of the inequality.

Answer:

If the shipping is for all books then the total cost is 164.95

Answer:

The last one

Step-by-step explanation:

Answer:

27 /35

Step-by-step explanation:

Para sumar fracciones, busque el LCD y luego combinar.

Answer:

Your answer is.......

x^3 + 2x^2 + 4x + 8=0 Note.. if x=-2 then whole equation is 0

So, (x+2) is one factor.

x^3 + 2x^2 + 4x + 8

=x^2(x+2)+4(x+2)

(x+2)(x^2+4)

Mark my answer as brainlist. pls pls pls

Answer:

29

Step-by-step explanation:

Answer: Depends on the number of grades

Step-by-step explanation:

School has up to 6th grade: 15

School has up to 7th grade: 12

School has up to 8th grade: 11

School has up to 9th grade: 10

School has up to 10th grade: 9

Need more grades? Comment please

Answer:

tienes que hacer cuadritos

Answer:

A= (1/2)(X)(2X)

(1/2)(2X^2)

= (2X^2)/2

Answer:8n-4

Step-by-step explanation:

Answer:

n=1/2

Step-by-step explanation:

Step1: 2n-n-4+7n

Step2: 8n-4

Step3: 8n=4

Step4: n=4/8

Step5: n=1/2

Answer:

4

9/8

Step-by-step explanation:

Given the fraction a/b, the reciprocal is expressed as 1/(a/b) = b/a

For 1/4;

1/4

= 1÷1/4

= 1 * 4/1

= 4

Hence the reciprocal is 4

b) 8/9

= 1 ÷ 8/9

= 1 * 9/8

= 9/8

Hence the reciprocal of 8/9 is 9/8

Answer:

yes it is true answer

Step-by-step explanation:

(-3,3)