During the past school year, there were 640 students and 52 teachers. What is the ratio of students to each teacher rounded to the nearest tenth?
a.
12.3:1
c.
160:13
b.
1:12.3
d.
13:160


Please select the best answer from the choices provided

A
B
C
D

Answer:

4 hours

Step-by-step explanation:

Cost of renting a bike at Oceanside Bike Rental Shop = 18 + 8x

Where,

x = number of hours for renting the bike

Alyssa paid 50 dollars to rent a bike.

How many hours did she pay to have the bike checked out ?

C = 18 + 8x

50 = 18 + 8x

Subtract 18 from both sides

50 - 18 = 18 + 8x - 18

32 = 8x

Divide both sides by 8

32 / 8 = 8x / 8

4 = x

x = 4 hours

Answer:

A. -22

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

B, rhombus and rectangle

Step-by-step explanation:

Why?

Because you can see none of their opposite lines intersect and they run on.

Answer:

The surface area of a square pyramid is the sum of the areas of all its 4 triangular side faces with the base area of the square pyramid. If a, h, and l are the base length, the height of the pyramid, and slant height respectively, then the surface area of the square pyramid = a2+ 2al (or) a2+2a √a24+h2 a 2 4 + h 2 .

Answer:

Step-by-step explanation: 3√2

Answer:

I believe it would be 8 days.

Step-by-step explanation:

The required proportion according to the given figure is [tex]\frac{2}{5} =\frac{5}{8}\\[/tex]

The dilation factor is used to determine the extent to which an object has increased or decreased.

The required proportion is expressed as:

[tex]\frac{l}{w} =\frac{L}{W}\\ \frac{5}{2} =\frac{8}{5}\\ \frac{2}{5} =\frac{5}{8}\\[/tex]

Hence the required dilation is [tex]\frac{2}{5} =\frac{5}{8}\\[/tex]

Learn more on dilation here: https://brainly.com/question/10253650

Answer:

1mm

cos(60)= 1/2

1/2 x 2 = 1

1 mm

i believe it would be d. -1

explanation:

you just cancel the common factor which is 2

then rewrite the expression

Answer:

The answer is [tex]2\frac{1}{12}[/tex]

Step-by-step explanation:

Answer:

25/12

Step-by-step explaining.

mark brainiest

Answer:

฿₹Ø: 1391 US$

Step-by-step explanation:

Answer:

Step-by-step explanation:

¿A qué se llamó feudalismo? ¿Dónde y cuándo se desarrolló?

Answer:C the students were amounting to almost nothing in theater a

Step-by-step explanation:

Answer:

I think its True but im not sure

Step-by-step explanation:

Answer:

false

Step-by-step explanation:

the value of Q3 is 15

Answer:

THis does that give me enough information to answer.

Step-by-step explanation:

Answer:

hope it helps...

Answer:

-2

Step-by-step explanation:

-6 ( x - 8) = 60

• divide -6 on both sides

-6 and -6 cancel out and 60 ÷ -6 = -10

• your new equation is now x - 8 = -10

• add 8 to both sides x - 8 = -10

+8. +8

• x = -2

Answer:

70148.06

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

10x90=900

so the answer is 900

Answer:

3

Step-by-step explanation:

Answer:

1/2x6=3

Step-by-step explanation:

i hope this helps :)

Answer:

the anwser is H

Step-by-step explanation:

the radical of 16 is《 4》

♧x^3 it means 4^3=64

the radical of 4 is 2

Answer:

6

Step-by-step explanation:

the opposite of -4 is 4 and then add 2

Answer:

Yeah 6

Step-by-step explanation:

Exact same steps as the person above :)

Good luck!!

Answer:

dependent & changes by a constant rate

Step-by-step explanation:

dependent because it involves something that involves something else

Answer:

2x+1=5x

or,2x-5x=-1

or, -3x=-1

or,3x=1

so,1=3x

therefore,no.c is the answer

Answer:

a = 3, b = -18

Step-by-step explanation:

You can start by getting a common denominator in the fractions [tex]\frac{x+1}{x-2}[/tex] and [tex]\frac{x-4}{x+2}[/tex]. You can multiply the first one by [tex]\frac{x+2}{x+2}[/tex] to get [tex]\frac{(x+2)(x+1)}{x^2-4}[/tex]and you can multiply the second by [tex]\frac{x-2}{x-2}[/tex] to get [tex]\frac{(x-4)(x-2)}{x^2-4}[/tex]. You can simplify the fractions:

[tex]\frac{(x+2)(x+1)}{x^2-4}[/tex] - [tex]\frac{x^2+3x+2}{x^4-4}[/tex]

[tex]\frac{(x-4)(x-2)}{x^2-4}[/tex] - [tex]\frac{x^2-6x+8}{x^2-4}[/tex]

Now we can rewrite the equation:

[tex]2-\frac{x^2+3x+2}{x^2-4} -\frac{x^2-6x+8}{x^2-4}[/tex]

and combine the terms with the same denominator:

[tex]2+\frac{-x^2-3x-2-x^2+6x-8}{x^2-4}[/tex]

[tex]2+\frac{-2x^2+3x-10}{x^2-4}[/tex]

Now, to add the two into the fraction, we multiply it by [tex]x^2-4[/tex] to get [tex]2x^2 - 8[/tex].

[tex]\frac{2x^2-8-2x^2+3x-10}{x^2-4}[/tex]

And simplify:

[tex]\frac{3x-18}{x^2-4}[/tex]

a = 3, b = -18

The value of the integers a and b are 3 and - 18 respectively.

What do you mean by algebraic expressions ?

Algebraic expression is an equation which consists of variables and the arithmetic operations such as division , multiplication , etc.

Firstly , let's find out a common denominator in the fractions , [tex]\frac{x+1}{x-2}[/tex] and [tex]\frac{x-4}{x+2}[/tex] .

The first one can be written as :

= [tex]\frac{x+1}{x-2}[/tex] × [tex]\frac{x+2}{x+2}[/tex]

= [tex]\frac{(x+1)(x+2)}{x^{2} - 4}[/tex]

and the second one can be written as :

= [tex]\frac{x-4}{x+2}[/tex] × [tex]\frac{x-2}{x-2}[/tex]

= [tex]\frac{(x-4)(x-2)}{x^{2} - 4}[/tex]

The expression will be :

= 2 - [tex]\frac{x+1}{x-2}[/tex] - [tex]\frac{x-4}{x+2}[/tex]

= 2 - [tex]\frac{(x+1)(x+2)}{x^{2} - 4}[/tex] - [tex]\frac{(x-4)(x-2)}{x^{2} - 4}[/tex]

= [ 2 (x²- 4) - (x+1) (x+2) - (x-4) (x-2)]/ [(x²- 4)]

= [2x² - 8 - x² - 3x - 2 - x² + 6x - 8] / [(x²- 4)]

By simplifying it , we get :

= [tex]\frac{3x-18}{x^{2} - 4}[/tex]

If we compare it with the given form which is [tex]\frac{ax + b}{x^{2} -4}[/tex] we get :

[tex]\frac{3x-18}{x^{2} - 4}[/tex] = [tex]\frac{ax + b}{x^{2} -4}[/tex]

or

3x - 18 = ax + b

or

The values of a and b are :

a = 3 and b = -18.

Therefore , the value of the integers a and b are 3 and - 18 respectively.

Learn more about algebraic expressions here :

https://brainly.com/question/1382660

#SPJ2

Answer:

distance

Step-by-step explanation:

lets say -7 what is -7 distance from 0

so the absolute value of -7 is 7

Answer:

Step-by-step explanation:

Absolute value represents the distance between 2 points on a number line or coordinate plane.

Answer:

the answer is 614/63

Step-by-step explanation:

6/7 + 80/9

614/63

Answer:

62.4

Step-by-step explanation:

Brainliest

Answer

62.4

Step-by-step explanation:

Answer:

sin x = 80/100

Step-by-step explanation:

sin = opp/hyp

sin x = 80/100