the math class has 9 girls and 14 boys. what is the ratio of girls to boys

Step-by-step explanation:

If two quantities x and y vary (change) together in such a manner that the ratio of their corresponding values remains constant, then x and y are said to be in direct proportion.

Answer: −10x+23 13/27

Step-by-step explanation: -(5)(2x)                                                                             -10x                                                                                                                                    3+79/ 3 12/14                                                                                                               3+ 79 / 3  6 /7                                                                                                                        3+ 79 / 27 /7                                                                                                           3+ 553 /27                                                                                                               634 /27                                                                                                                           23  13 /27                                                                                                                   −10x+23 13/27                      

Step-by-step explanation:

#1

6 × n + 15 = -42

6n + 15 = -42

6n = -42 - 15

6n = -57

n = -57/6

n = -19/3

#2

b + 3/2b + b + 45 + 2b - 5 + 90 = 540

b + 1.5b + b + 45 + 2b - 5 + 90 = 540

5.5b + 130 = 540

5.5b = 540 - 130

5.5b = 410

b = 410/5.5

b = 74.5

Angles are

b = 74.5

1.5(74.5) = 111.75

74.5 + 45 = 119.5

2(74.5) - 5 = 144

The point which is equidistant from the endpoints of a line segment, hence, marking the middle point of the line is called the midpoint. Therefore, Point B is not the midpoint

AB + BC = AC

9x + 7 + (-3x + 20) = 39

9x + 7 - 3x + 20 = 39

6x + 27 = 39

6x = 39 - 27

6x = 12

x = 12 / 6

x = 2

9x + 7 = - 3x + 20

9(2) + 7 = - 3(2) + 20

25 = 15

Hence,

Since, AB ≠ BC, then B is not the midpoint

Learn more : https://brainly.com/question/18109354

Answer:

x = 5

Step-by-step explanation:

(5) + 20/2 = 3(5)

Hope it helps

Step-by-step explanation:

[tex](a {}^{m})^n = {a}^{m \times n} [/tex]

(7¹³)³ × 7⁰

7¹³ • ³ × 1

7³⁹ × 1

7³⁹

Answer:

158400 inches

Step-by-step explanation:

2.5* 5280 because 2.5 miles is 13200 feet.

13200*12 because 13200 feet is 158400 inches.

The answer would be 158400 inches.

Answer:63456

Step-by-step explanation:

5280*12=63456

Answer:

3/2

Step-by-step explanation:

you basically just simplify the exponents first, and then simplify from there.

Answer:

2π[3π–2]=14

2π +1π=14

3π=14

π=4.66

it help you

Answer:

[tex]x=-\frac{5}{3}\quad \mathrm{or}\quad \:x=3[/tex]

Step-by-step explanation:

[tex]2\left|3x-2\right|=14[/tex]

⇒ Divide both sides by 2

[tex]\frac{2\left|3x-2\right|}{2}=\frac{14}{2}[/tex]

[tex]\left|3x-2\right|=7[/tex]

⇒ Now, apply absolute rule:- if |x|=a,a > a than x=a or x=-a

[tex]3x-2=-7\quad[/tex]

or...

[tex]3x-2=7[/tex]

Now,

[tex]3x-2=-7[/tex]

⇒ Add 2 to both sides:-

[tex]3x-2+2=-7+2[/tex]

[tex]3x=-5[/tex]

⇒ Divide both sides by 3:-

[tex]\frac{3x}{3}=\frac{-5}{3}[/tex]

[tex]x=-\frac{5}{3}[/tex]

[tex]3x-2=7[/tex]

⇒ Add 2 to both sides:-

[tex]3x-2+2=7+2[/tex]

[tex]3x=9[/tex]

⇒ Divide both sides by 3:-

[tex]\frac{3x}{3}=\frac{9}{3}[/tex]

[tex]x=3[/tex]

OAmalOHopeO

Answer:

y=5x-4

Step-by-step explanation:

I'm not exactly sure but this is what I learn when to solve slope that passes thru 2 points

Answer:

Find the common difference and the next term of the following sequence:

3, 11, 19, 27, 35...

Step 1. To find the common difference, subtract any consecutive pair of terms.

11 - 3 = 8

19 - 11 = 8

27 - 19 = 8

35 - 27 = 8

The difference is always 8, so d = 8.

Step 2. Use the common difference to find the next term.

Since the last term was 35, adding the common difference of 8 will find the next term. The next term is 35 + 8 or 43.

Step-by-step explanation:

mark me brainliest plz

Answer:

[tex]d = a_{2} - a _{1}[/tex]

d is the common difference

a1 is the first term, a1 = 27

a2 is the second term, a2 = 11

substitute:

[tex]d = 11 - 27 \\ { \boxed{ \boxed{d = - 16}}}[/tex]

Answer:

Step-by-step explanation:

If she had two dice, a seven is the most common roll you can get, although the odds are still against you.

To get a seven with just 1 die is impossible.

Laugh now cry later.

Answer:

14) 2x + 13 = 21

Step-by-step explanation:

Have a nice day! :-)

Answer:

2.5

Step-by-step explanation:

2.14

+ 0.42

= 2.56

the first number after the decimal is the tenth

Answer:

2.5 Would be the Correct Answer!

Answer:

inegeters

Step-by-step explanation:

Answer: x=1/2d+-1/2y

Step-by-step explanation: 2x+y-y=d-y                                                                 2x/2=d-y/2                                                                                                               x=1/2d+-1/2y

Answer:

BEANS

Step-by-step explanation:

BEANS BEANS BEANS BEANS BEANS BEANS

Answer:

y=-5x+1

Step-by-step explanation:

hope it helps you

Answer:

y = 3/4x + 19/2

Step-by-step explanation:

m = 3/4. point (-6,5)

Point slope form:

y-5=3/4(x- -6)

y -5 = 3/4x + 18/4. 18/4 = 9/2

Y = 3/4x + 9/2 + 5. 5 times 2 plus 9 over 2 = 19/2

y = 3/4x + 19/2

Step-by-step explanation:

speed of sound in x depth = 1534 + 17x

4 × 17 = 68 is the increase of sound speed caused by 4 km increase in depth

Step-by-step explanation:

Answer: x[tex]\geq[/tex]42

Step-by-step explanation: 13-x-13≤–29-13                                                        -x+13-13≤-29-13                                                                                                     -x≤29+13                                                                                                                      x[tex]\geq[/tex]42

Answer:

Wrong division to post a question of this kind, BUT a membrane is a a thin sheet of tissue or layer of cells acting as a boundary, lining, or partition in an organism,... yes I looked it up,...

Chow,...!

The basic idea is that multiplying by 10 just moves the decimal point one place to the right.  It makes the number bigger.

Examples:

3.1 x 10 = 31

3.1 x 10 x 10 = 31 x 10 = 310

Each time you multiply by another 10, the decimal point moves one more place.

In your exercise, [tex]10^3[/tex] says you're going to multiply by 10 three times in a row.  So that will move the decimal point 3 places to the right.

So what do you get if you move the decimal in 4.25 three places to the right?