In a group of 20 students there are 11 girls what is the ratio of boys to girls

Answers

Answer 1

Answer:

9:11

Step-by-step explanation:

subtract the amount of girls to get the amount of boys then put it in ratio form in the order it is asked so it is 9:11


Related Questions

Given f(x) = 3 and g(x) = cos(x). What is Limit of left-bracket f (x) minus g (x) right-bracket as x approaches negative pi?

Answers

Answer:

C

cos pie= -1

so (3-(-1)=3+1=4

Step-by-step explanation:

PLEASE HELP I’ll give you a 5 star!!!


Match each expression in the top row with an equivalent expression in the bottom row.

Answers

Answer:

maam i cant see the row of numbers lol

Step-by-step explanation:

find the exact value given that sin A= -4/5 with A in quadrant IV, tan B=7/24 with b in quadrant III, ; cos C= -5/13 with c in quadrant II

Answers

Answer:

A= 306,87°

B= 196,26°

C= 112,62

Step-by-step explanation:

sinA =-4/5

A = -53,24°

A = 306,87°

tan B = 7/24

B = 16,26°

B = 196,26°

cos C = -5/13

C = 112,62°

Four students are painting a wall mural for their school.Each student paints 5/7 square yard of wall space.What is the total area of the wall mural that is being painted

A. 20/28
B. 2 6/7
C. 4 5/7
D. 5 3/5

(NEED IT PLEASE)

Answers

the answer to you question is D

A town has a population of 2000 and grows at 4% every year.
What would the exponential function be if you were trying to predict what the
town's population would be after 12 years?
A 2000(04)12
B 2000(0.4)12
C 2000(1.04)12 D 0.04(2000)12

Answers

Answer:

[tex] \frac{4}{?100} \times \frac{2000}{1?} = 80 \\ \\ 2000 + 80 = 2080 \\ \\ \\ 2080 \times 12 = 24960[/tex]

Which equation is equivalent to -4(y-2)=12?

1. -4(y-2)=3
2. -4(y-2)=-3
3. y-2=12
4. y-2=3
5. y-2=-3

Please I’ll mark you brainliest if you answer

Answers

Answer:

–4(y–2)=12

y–2=12/–4

y–2=–3

The choose (5)

When the solution of x2 − 9x − 6 is expressed as 9 plus or minus the square root of r, all over 2, what is the value of r? x equals negative b plus or minus the square root of b squared minus 4 times a times c, all over 2 times a

Answers

Answer:

r = 105

Step-by-step explanation:

Given quadratic equation:

x² − 9x − 6

Quadratic formula is given by:

(-b ± √b² - 4ac) ÷ 2a

For the equation: x² - 9x - 6

a = 1, b = -9 and c = -6

Substitute in the quadratic formula:

(-b ± √b² - 4ac) ÷ 2a

(-(-9) ± √(-9)² - 4(1*-6)) ÷ 2*1

= 9 ± √105 / 2

The solution of x² − 9x − 6 is expressed as 9 plus or minus the square root of r, all over 2

Therefore, the value of r is 105

what type of angles are <5 and <16

Answers

You forgot to add a picture

please help meeeeeeeee

Answers

Answer:

Point D is at 3 this is the only correct point...

Step-by-step explanation:

B D E I believe:)
Reason being is because before 0 it’s negatives and after is positives

The following set of coordinates represents which figure?

(7, 10), (4, 7), (6, 5), (9, 8)

Answers

Answer:

yufglufgkhjtshjskjhlesglezgzeghllghjr4aeklbxjhihGHIUYGUYG

Step-by-step explanation:

Tyler bought snacks for his team's practice. He bought a bag of oranges for $1.94 and a 24-pack of juice bottles. The total cost before tax was $43.22. Write and solve an equation which can be used to determine xx, how much each bottle of juice costs?

Answers

The equation is as follows:

He paid $1.94 for oranges and bought 24 pack juice bottle the total is $43.22.

Let x be the the amount for each bottle of juice.

24x + 1.94 = 43.22
24x = 43.22 - 1.94
24x = 41.28
24x/24 = 41.28/24
x = 1.72

Therefore each bottle of juice costs $1.72

I pull a block out 50 times, I pull a green block 32 times out of 200 picks how many times will I pull a green block?

Answers

Answer:

128 times

Step-by-step explanation:

32 / 50 = 0.64

0.64 * 200 = 128

128 times out of 200

What is the Value of the expression 3 (2x - 4) when x = -3?​

Answers

Answer:

-30

Step-by-step explanation:

3 (2(-3) - 4)

= 3(-6 - 4)

= 3(-10)

= -30

Answer:

1 Let x=1x=1.

2\times 1\times 4=8

2×1×4=8

2 Simplify  2\times 12×1  to  22.

2\times 4=8

2×4=8

3 Simplify  2\times 42×4  to  88.

8=8

8=8

Step-by-step explanation:

What is the Value of the expression 3 (2x - 4) when x = -3?​

2 Divide both sides by 88.

x=1

PLEASE HELP ME!!! ILL GIVE BRAINLIEST TO RIGHT ANSWER

Answers

Answer:

792m^2

Step-by-step explanation:

Seperate your 2 rectangles

Large one is 18*30

Small one (60-18)*6

18*30 = 540m^2

42*6=252m^2

I WILL GIVE AN EXTRA 50 POINTS TO WHOEVER GETS THESE 2 QUESTIONS RIGHT
A card is drawn from a standard deck of cards. What is the probability
that a spade is drawn, then replaced, and a red card is drawn second?

A card is drawn from a standard deck of cards. What is the probability that a spade is drawn, NOT replaced, and another spade is drawn?

Answers

Answer:

See below for answers and explanations

Step-by-step explanation:

Problem 1:

A standard deck of cards contains 52 cards, consisting of 13 spades. If you select only one randomly, the probability of that occurring would be 13/52 or 1/4. Since there are only 26 red cards in a standard deck, then the probability of selecting a red card would be 26/52 or 1/2. Because the two events are independent of each other, their probabilities are multiplied. Therefore, the probability of selecting a spade, and then replacing it in hopes of drawing a red card is (1/2)(1/4) = 1/8.

Problem 2:

We are selecting a spade and then another spade while NOT replacing the first spade (remember that these events are independent of each other also). This means that the total card count will change by picking up the second card. Therefore, the probability of selecting a spade, followed by another spade, is (13/52)(12/51) = 156/2652 = 1/17.

pls help i need to solve for X and m b

Answers

Answer:

x=12. B=52

Step-by-step explanation:

In ∆BCD,

<C=45

<D=7x-1

<B=3x+16[as this diagram is a parellelogram so DE II BC so <CBD=<BDE=3x+16 bcz alternate interior angle]

interior angle of triangle=180 degree

<B+<C+<D=180

3x+16 + 45 + 7x-1 = 180

10x + 60=180

10x =180-60

x=120/10

x=12 degree

m<B =3x+16

=3(12)+16

=36+16

m<B = 52 degree

MARK ME BRAINLIEST THANKS MY ANSWER PLEASE IT TOOK TOO MUCH TIME

help me on this question

Answers

Answer:

x = 8

Step-by-step explanation:

It is given that the two polygons are similar, one property of similar polygons is that if one were to multiply each side length by a certain number (referred to as the ratio of similitude), they would get the side length of the corresponding side on the other polygon. To find the ratio one has to divide the side length of one polygon by its corresponding side length in the other polygon.

30 ÷ 25 = 1.2

Set up an equation by multiplying one side length by the ratio of similitude, set it equal to its corresponding side length in the other polygon;

1.2 (35) = 4x + 10

Simplify,

42 = 4x + 10

Inverse operations,

42 = 4x + 10

32 = 4x

8 = x

Answer:

Step-by-step explanation:

Use proportions to solve this and the similarity from smaller side to corresponding larger side:

[tex]\frac{s}{l}:\frac{25}{30}=\frac{35}{4x+10}[/tex] and cross multiply to solve for x:

1050 = 25(4x + 10) and

1050 = 100x + 250 and

800 = 100x so

x = 8

please show work for both thank you!!

Answers

Answer:

a. x = 4.8989794855663561963945681494118 or 4.9 rounded

b. x = 8.6023252670426267717294735350497 or 8.6 rounded

Step-by-step explanation:

7² - 5² = x²

49 - 25 = x

49 - 25 = 24

√24 = 4.8989794855663561963945681494118

7² + 5² = x²

49 + 25 = x

49 + 25 = 74

√74 = 8.6023252670426267717294735350497

the person before me was right so hope this helps did before!

I need help bro pleaseeee

Answers

As a fraction: 20/7
As a mixed number: 2 6/7

Answer

20/7=2 6/7

Step-by-step explanation:

soory no explanation

L=4 w=5 h=3
Surf. Area = ?

Answers

A= 60 pls mark brainliest

Answer:

im assuming this is a rectangular prism since no specific shape was provided. the answer is 94 square units. if this is correct plz mark brainliest :)

Step-by-step explanation:

The cost of making hamburger is 10.75 and the selling price is 16. The fixed expenses for the month is 3000. How many hamburger should be sold per month

Answers

Answer:

Break-even point in units= 571 hamburgers

Step-by-step explanation:

Giving the following information:

The cost of making a hamburger is 10.75 and the selling price is 16. The fixed expenses for the month are 3000.

To calculate the break-even point in units, we need to use the following formula:

Break-even point in units= fixed costs/ contribution margin per unit

Break-even point in units= 3,000 / (16 - 10.75)

Break-even point in units= 571 hamburgers

Which situation is best modeled by the expression 1/2 x 1/6.

Answers

Answer:

I'm gonna go with b p.s: sorry if im wrong

Step-by-step explanation:

The Situation described in option A models best the given expression

The given expression is:

[tex]\frac{1}{2} *\frac{1}{6}[/tex]

What is a fraction?

A fraction is part of a whole.

A)Pablo spent 1/2 hour practising the trumpet, he spent 1/6 of that time practising his scales.

This means he spent [tex]\frac{1}{2} *\frac{1}{6}[/tex] hours i.e. [tex]\frac{1}{12}[/tex] hours while practising his scales.

So, option A best models the expression [tex]\frac{1}{2} *\frac{1}{6}[/tex].

B)This option is concerned with [tex]\frac{1}{2} +\frac{1}{6}[/tex]

C)This option is concerned with [tex]\frac{1}{2} /\frac{1}{6}[/tex]

D)This option is concerned with [tex]\frac{1}{2} -\frac{1}{6}[/tex]

Hence, option A best models the expression [tex]\frac{1}{2} *\frac{1}{6}[/tex].

To get more about fractions visit:

https://brainly.com/question/78672

What is one possible solution to the equation you wrote in #1, in the form (S,H)
O (20,10)
O (5,10)
O (20,20)
0 (0,40)

Answers

0,40 :) hope u get it right

Is 5.585786438 rational or irrational

Answers

From what I have learnt:

The number has an ending so it is rational

Irrational numbers don't end, e.g. π (3.1415926...)

Help and anyone that helps I’ll kiss you on the lips

Answers

I don’t want u to kiss me

pls tell me the answer . I am only having 10 minutes
no links

if we subtract the didgit of a two digit number, we get 4. if we interchange the digits of the number and subtract the new number from the original number we get 44. What is the original number​

Answers

Answer:

Assume that the two digits are x and y (x is at ones position and y is at tens position)

if we subtract the digit of a two digit number, we get 4.

this means,

x-y=4    ..................... (1)

if we interchange the digits of the number and subtract the new number from the original number we get 44.

this means,

old no. 10y+x

new no. 10x+y

10y+x-(10x+y)=44

10y+x-10x-y=44

9y-9x=44    ........................... (2)

solve the two equations:

id these two equations are solved, we get no solution.

meaning, such a number with these given conditions do not exist

Step-by-step explanation:

Helpppppppppp /:;.:;(???()((;;

Answers

Answer:

721.64

Step-by-step explanation:

32.7*26.3=860.01

13.7*10.1=138.37

860.01-138.37=721.64

721.64 mi^2

Step-by-step explanation:

Area of the large rectangle A2 is

A2 = (32.7 mi)(26.3 mi) = 860.01 mi^2

Area of the small rectangle A1 is

A1 = (10.1 mi)(13.7 mi) = 138.37 mi^2

Therefore, the area of the shaded region is simply the difference between A2 and A1:

Area (shaded) = A2 - A1

= 860.01 mi^2 - 138.37 mi^2

= 721.64 mi^2

PLS HELP I WILL GIVE BRAINLIEST

Answers

Step-by-step explanation:

[tex]6 {x}^{2} {y}^{3} - 2x + 10 \\ when \: x = 5 \: y = - 3 \\ 6( {5})\: ^{2} ( { - 3})^{3} - 2(5) + 10 \\ 6 (25)( - 27) - 10 + 10 \\ = - 4050[/tex]

A company wants to compare two washing detergents (Brands A and B) to see which best keeps colors from fading. Twenty new, identical red t-shirts will be used in the trials. Ten t-shirts are washed 15 times with Brand A in warm water. The other 10 t-shirts are washed with Brand B in cold water. The amount of fading is rated on a 0 to 100 scale, and the mean for the t-shirts washed in Brand A is compared to the mean for the others. Is this a good experimental design

Answers

Answer:

No, because water temperature is confounded with brand of detergent.

Step-by-step explanation:

There is a very possible chance of allowing a third or confounding variable to have creepwd into the research. The aim was to investigate which of two detergents prevents color from fading. Hence, the test for both detergents should be carried out under the same research condition. However, with adoption of different water temperature for each of detergent A and B, there may be a relationship between fading and water temperature which is not what are trying to investigate. This difference in temperature will thus cause a spurious relationship in our research. Hence, water temperature has been confounded with detergent brand, making this experimental design a bad one.

Find the slope of this line

Answers

the slope (rise/run) aka 2 but since the line goes down its -2
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