A school has 55 students . If 10 of the students are boys , what is the ratio of girls to boys ?

Answers

Answer 1
45:10 I think ? .. that’s how my teacher did it

Related Questions

A salesperson works 40 hours per week at a job where
she has two options for being paid. Option A is an hourly wage of ​$
24. Option B is a commission rate of
8​% on weekly sales. How much does
she need to sell this week to earn the same amount with the two​ options?

Answers

Answer:

12,000 in sales

Step-by-step explanation:

$24/hour x 40 hours=960 salary

sales x commission rate =salary

sales x .08=960

sales =960/.08

sales=12,000

PART 1:
In the diagram below, ΔRST is a right triangle, write the equation you would use to solve for side RT. (For example, cos20 = 13/x )

PART 2:
Using the equation you wrote above, solve for side RT and round your answer to the nearest tenth.

Answers

Answer:

[tex](a)\ \sin(46) = \frac{8}{RT}[/tex]

[tex](b)\ RT = 11.1[/tex]

Step-by-step explanation:

Given

The attached triangle

Solving (a): Equation to determine RT

To do this, we apply sine formula

[tex]\sin(\theta) = \frac{Opposite}{Hypotenuse}[/tex]

This gives:

[tex]\sin(46) = \frac{8}{RT}[/tex]

Solving (b): Solve the equation

[tex]\sin(46) = \frac{8}{RT}[/tex]

Make RT the subject

[tex]RT = \frac{8}{\sin(46)}[/tex]

[tex]RT = \frac{8}{0.7193}[/tex]

[tex]RT = 11.1[/tex]


Albert was paid $85 for washing
a neighbor's car. This is one
!fourth of the amount of money
i he earned all summer. Write and
solve an equation to find the
total amount Albert earned
during the summer?

Answers

Answer:

$340

Step-by-step explanation:

85 x 4 = 340.

Because 85 = 1/4, 4/4 = 85 x 4 = 340

Lee Ran 100 meteres in 28.45 seconds. Jackie ran 100 meters in 30.29 seconds. How Much Longer did it take jackie than lee to run 100 meters?


Will Mark Brainliest if someone answer’s ,No Link’s

Answers

Answer:

1.84 meters

Step-by-step explanation:

Jackie: 30.29 meters - Lee: 28.45 meters = 1.84 meters

My usual workout consists of running 10 laps around a 400 meter track. If I go to a track that is only 250 meters long, how many laps will I need to run to get the same workout?


100 POINT QUESTION!!!

Answers

Answer:

16 laps

Step-by-step explanation:

400x10=4000

4000÷250=16

bro what does "log 2" mean in math

Answers

Answer:

In math the binary logarithm (log2 n) is the power to which the number 2 must be raised to obtain the value n. That is, for any real number x, For example, the binary logarithm of 1 is 0, the binary logarithm of 2 is 1, the binary logarithm of 4 is 2, and the binary logarithm of 32 is 5.

Plsss helpp bestiessss I’ll mark you brainliesttt

Answers

3150 hope that helps...

What is the solution of the system of equations given below?
y = 5x - 18
y = x + 2
(4,2)
(7,5)
(5,7)
(2,4)

Answers

Answer: (5,7)

How to: Solve for the first variable in one of the equations, then substitute the result into the other equation.

Have a great day !

Plz help me well mark brainliest if you are correct!!...

Answers

Reflecting over the y axis means the x would change (flip from either positive to negative) so therefore the answer is A.
The answer is A I hope this helps

Suppose that 70% of all Americans agree that a candidate is not trustworthy. A survey finds the 116 out of 200 agree that a candidate is not trustworthy. How likely is the result above to happen, if the sample is representative of the population?

Answers

Answer:

Prob = 0.00009 = 0.009%  , Less Likely

Step-by-step explanation:

Using Binomial Distribution, Prob = N c r . ( P )^ r . ( Q ) ^ (n -r)   .

,P = success probability, ie candidate considered be trustworthy = 70% = 0.7; N = trials = 200 ; Q = failure probability, ie non trustworthy = 1 - 0.7 = 0.3  r = no. of success = 116

Pr = 200c116 . (0.7)^116 . (0.3)^(200 - 116) = 200c116 (0.7)^116 (0.3)^84 = 0.00009 = 0.009%

Less probability means Less Likely

the sum of 2 numbers is 65 and the difference is 7

Answers

Answer:

Hello There!!

Step-by-step explanation:

The answer is=>The sum is x + y = 65

The difference is x - y = 7 .....x = 7 + y

7 + y + y = 65

7 + 2y = 65

2y = 58

y = 29

x + y = 65

x + 29 = 65

X = 36

The Sum: 36 + 29 = 65

The Difference: 36 - 29 = 7

hope this helps,have a great day!!

~Pinky~

Answer:

36 and 29

Step-by-step explanation:

The sum of the two numbers is 65 and their difference is 7. What are the two numbers? Let's start by calling the two numbers we are looking for x and y.

The sum of x and y is 65. In other words, x plus y equals 65 and can be written as equation A:

x + y = 65

The difference between x and y is 7. In other words, x minus y equals 7 and can be written as equation B:

x - y = 7

Now solve equation B for x to get the revised equation B:

x - y = 7

x = 7 + y

Then substitute x in equation A from the revised equation B and then solve for y:

x + y = 65

7 + y + y = 65

7 + 2y = 65

2y = 58

y = 29

Now we know y is 29. This means that we can substitute y for 29 in equation A and solve for x:

x + y = 65

x + 29 = 65

X = 36

Summary: The sum of two numbers is 65 and their difference is 7. What are the two numbers? Answer: 36 and 29 as proven here:

Sum: 36 + 29 = 65

Difference: 36 - 29 = 7

A cube has a volume of 729 cubic centimeters. What can be concluded about the cube? Check all that apply.

Recall the formula Cube volume = s cubed.
The side length, s, can be found using the equation 3 s = 729
This is a perfect cube.
The side length is 243 centimeters.
The side length is 9 centimeters.
Taking the cube root of the volume will determine the side length.
If you multiply the volume by three, you can determine the side length.

Answers

Answer:

b c d h

Step-by-step explanation:

i took the test

The true conclusion about the cube are :

This is a perfect cube

The side length is 9 centimeters

Taking the cube root of the volume will determine the side length.

What is volume?

A volume is simply defined as the amount of space occupied by any three-dimensional solid. These solids can be a cube, a cuboid, a cone, a cylinder or a sphere. Different shapes have different volumes.

Volume of a cube = l³

where

l = length

Therefore,

volume = l³

729 = l³

cube root both sides

l = ∛729

l = 9 cm

Therefore, what is true about the cube is as follows:

This is a perfect cube

The side length is 9 centimeters

Taking the cube root of the volume will determine the side length.

learn more on volume here: brainly.com/question/5871032

#SPJ7

If I made $20 in 4 hours, what is the rate at which I made money?

Answers

Answer:

it would be five each hour.

Step-by-step explanation:

What type of quadrilateral is DEFG? Select all that apply.
ty
F
E
6
2
G
2
D
o
2
A rhombus
B. parallelogram
C! square
DE
D trapezoid

Answers

Answer:

Rhombus

Square

Step-by-step explanation:

Given

Attached quadrilateral

Required

Select the type(s) of quadrilateral

From the attached image, we have:

[tex]DE = FG[/tex] -- Opposite, Parallel and Equal

[tex]EF = GD[/tex] -- Opposite, Parallel and Equal

Also:

[tex]DE = EF =FG = GD[/tex]

Since all 4 sides are equal, then it is neither a parallelogram nor a trapezoid

Hence, the shape is either a rhombus or a square

Please answer it. I will give brainliest if its correct..

Answers

First find the circumference of the circle:

Circumference = 2 x radius x pi

Circumference = 2 x 4 x 3.14 = 25.12 cm

Now arc ML is 100 degrees.

Multiply the circumference by the arc degree/360 ( 360 is a full circle)

25.12 x 100/360 = 6.98 cm

The answer is 6.98 cm

brainlest e answ eeeeee

Answers

Answer:

1/4

Step-by-step explanation:

The fraction can be reduced using 3

3/3 = 1

12/3 = 4

3/12 = 1/4

Answer:

1/4

Step-by-step explanation:

factors of 3: 1, 3

factors of 12: 1, 2, 3, 4, 6, 12

GCF is 3

3 / 3 x 12 / 3 =

1 / 4

100 POINTS!!!!!!! Please help me find an equation for the data in the table.

Answers

Step-by-step explanation:

First find the common ratio

Then find your first term

Use the terms in the general equation

help me!!!!!!!!!plzzz​

Answers

Answer:

B. 1/3

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

add all the values 10+14+6=30 since red is 10 divide 10 by 30 so 10/30 simplifying to 1/3.

y=x+5
please help me with this problem I'm really struggling to answer the question.​

Answers

Answer:12

Step-by-step explanation:just know i did it and got it right

Use the explicit rule given to write the first four terms the sequence
F(n)=n²+7

Answers

Answer:

8, 11, 16, 23

Step-by-step explanation:

the rule is: f(n) = n²+7

first 4 terms are:

f(1) = 1² +7 so f(1) = 8

f(2) =2² +7 so f(2) = 11

f(3) = 3² +7 so f(3) = 16

f(4) = 4² +7 so f(4) = 23

Round 46.27 to the nearest tenth

Answers

Answer:

46.3

Step-by-step explanation:

Answer:

46.3

Step-by-step explanation:

46.27 the tenths place is the 7 and the 2 is the ones and you round the 7 to make the 2 to a 3 and get rid of the 7

A regression of y = calcium content (g/L) on x = dissolved material (mg/cm2) was reported in the article "Use of Fly Ash or Silica Fume to Increase the Resistance of Concrete to Feed Acids" (Mag. Concrete Res., 1997: 337–344). The equation of the estimated regression line was y = 3.678 + .144x, with r2 = .860, based on n = 23.

a. Interpret the estimated slope .144 and the coefficient of determination .860.
b. Calculate a point estimate of the true average calcium content when the amount of dissolved material is 50 mg/cm2.
c. The value of total sum of squares was SST = 320.398. Calculate an estimate of the error standard deviation σ in the simple linear regression model.

Answers

Answer:

a) The slope = 0.144 , means that an increase in dissolved material by 1 mg/cm^2 will lead to an increase in Calcium content by 0.144 g/l

while the coefficient of determination = 0.869 , means that 86% of the variation ( natural ) of calcium content is explainable using the Linear model.

b) 10.878

c) S ≈ 1.99

Step-by-step explanation:

a) The slope = 0.144 , means that an increase in dissolved material by 1 mg/cm^2 will lead to an increase in Calcium content by 0.144 g/l

while the coefficient of determination = 0.869 , means that 86% of the variation ( natural ) of calcium content is explainable using the Linear model.

B) Point estimate of true average calcium content

Given that dissolved material = 50 mg/cm^2

= 3.678 + 0.144 * dissolved material

=  3.678 + 7.2 =  10.878

C) Determine an estimate of error standard deviation

Given that ; sum of squares ( SST ) = 320.398

                   COD ( r )  = 0.86

first;  calculate the value of SSE = SST - SST ( r^2 )

SSE = 320.398 - 320.398 ( 0.86) ^2

       = 83.43

Finally ; determine the estimate of error standard deviation

S^2 = SSE / n -2

      = 83.43 / 23 - 2

∴ S ≈ 1.99

Answer this question pls I need it rn

Answers

Answer:

K = 84°

L ; M = 48 ; 48

Step-by-step explanation:

L = (5x + 18)

M = (3x + 30)

K = k

L + M + K = 180° (sum of angles in a triangle)

The two base angles are equal :

Hence ;

5x + 18 = 3x + 30

5x - 3x = 30 - 18

2x = 12

x = 6

Hence,

L = 5x + 18 = 5(6) + 18 = 30 + 18 = 48°

M = 3x + 30 = 3(6) + 30 = 48°

K = 180 - (48 + 48)

K = 180 - 96

K = 84°

A scalar pipeline has 4 pipeline stages A, B, C, D. An operand entering this pipeline must be processed by the four units A-> B -> C -> D. Suppose that units A, B , D takes 2 ns to process an operand, and unit C takes 3 ns to process an operand. How many ns does it take for this scalar pipeline to process 1000 independent operations?

Answers

Answer:

The answer is "3006 ns"

Step-by-step explanation:

The time is taken by [tex]a,b, D = 2\ ns[/tex]

taking time [tex]= 3 \ ns[/tex]

first taking time [tex]= 2\times 3+3= 6+3=9[/tex]

Calculating the Rest taking 3 ns to process

For 1000:

[tex]= 9+ 3\times 999\\\\= 9+2997\\\\=3006\ ns[/tex]

3. Find the lateral surface area of the figure
below.


No links please I really need an answer

Answers

Answer:

284 [tex]ft^{2}[/tex]

Step-by-step explanation:

Area of triangle = bh/2 = 4(8)/2 = 16

Area of both triangles = 32

Area of left face = bh = 8(12) = 96

Area of right face = bh = 9(12) = 108

Area of bottom = bh = 4(12) = 48

Total lateral area = 32 + 96 + 108 + 48 = 284

If 18 people share a barrel of apples equally,each gets 12 apples.if there had been 6 fewer people,how many apples would each person get ?​

Answers

Answer:

18 apples

Step-by-step explanation:

If 18 people each get 12 apples, then the total number of apples is 18*12=216.

If there were 6 fewer people, there would 18-6=12 people.

To split the total 216 apples between 12 people, so 216/12=18.

Each person would get 18 apples.

What is the slope of the line that passes through the points (9, 5) and (21, 1)?
Write your answer in simplest form.

Answers

Answer:

[tex]\displaystyle m = \frac{-1}{3}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Coordinates (x, y)Slope Formula: [tex]\displaystyle m = \frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Point (9, 5)

Point (21, 1)

Step 2: Solve for slope m

Substitute in points [Slope Formula]:                                                              [tex]\displaystyle m = \frac{1-5}{21-9}[/tex][Fraction] Subtract:                                                                                           [tex]\displaystyle m = \frac{-4}{12}[/tex][Fraction] Simplify:                                                                                            [tex]\displaystyle m = \frac{-1}{3}[/tex]

3 Select the correct answer. Which measure of center is the most appropriate for this data set? 20, 6, 42, 13, 15, 10, 9, 12, 12
A mean
B median
C mode
D mean absolutely median

Answers

Answer:

B median

Step-by-step explanation:

The median is the center of any data set

if x varies inversely as y and x=2.5 when y = 40 , find y when x = 2

Answers

Answer:

2.5/40=2/y

2.5y=40x2

2.5y=80

y=80/2.5

y=32

Circle A contains points B, C, D, and E. BC and DĚ intersect on the exterior of OA at the point F. 68% D 26° Find the measure of SCFE.

Answers

Answer:

6

Step-by-step explanation:

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