2) (Four students in a class do not have any siblings. This is 20% of the entire class.
How many students are in the class? HELPPP I HAVE A TEST TOMORROW THIS IS a test ) “solving percent with double number lines and mental math”

Switch\:sides

-9s<-72

\mathrm{Multiply\:both\:sides\:by\:-1\:\left(reverse\:the\:inequality\right)}

\left(-9s\right)\left(-1\right)>\left(-72\right)\left(-1\right)

\mathrm{Simplify}

9s>72

\mathrm{Divide\:both\:sides\:by\:}9

\frac{9s}{9}>\frac{72}{9}

Simplify

s > 8

[tex]\\ \tt\longmapsto -72>-9s[/tex]

[tex]\\ \tt\longmapsto 9s>72[/tex]

[tex]\\ \tt\longmapsto s>8[/tex]

Or

[tex]\\ \tt\longmapsto s\in(8,\infty)[/tex]

Answer: y = 0.4x

In fraction form, this is y = (2/5)x

================================================

Explanation:

For each row, divide the y over x values

We end up with the same thing each time.

Since y/x = 0.4, this rearranges to y = 0.4x

Alternatively, you can write the equation as y = (2/5)x because 2/5 = 0.4

Answer:

32 oz = 2 lbs

Step-by-step explanation:

Answer:

10,000

Step-by-step explanation:

Alright here it is. Sorry didn't have space so I put star next to it..

⭐ Answered by Foxzy0

⭐ Brainliest would be appreciated, I'm trying to reach genius! ⭐

⭐ If you have questions, leave a comment, I'm happy to help! ⭐

Answer and Step-by-step explanation:

For these questions, this Exit Ticket is asking for you to take the information given and to formulate it into a bar chart, while labeling our chart as well. I have included my bar chart graph in the attachment below.

I hope that this helps.

c0 and a and andand and and and andand

Step-by-step explanation:

last week they ate 1 1/6 = 6/6 + 1/7 = 7/6 cartons.

this week they ate 3 = 3×6/6 = 18/6 cartons.

so, how much more did they eat ?

it is not fully clear to me, if we need to find the absolute difference in cartons, or if we need the factor between both amounts (like "how many times did they eat more ?").

to be safe I give you both.

in absolute difference :

18/6 - 7/6 = 11/6 cartons = 1 5/6 cartons more.

as factor :

7/6 × x = 18/6

7x = 18

x = 18/7

they ate 18/7 = 2 4/7 times more

Answer:

y - 7 = 1(x + 3)

Step-by-step explanation:

Point-Slope Form: [tex]y-y_1=m(x-x_1)[/tex]

[tex]{\large \textsf{where}\ m\ \textsf{is the slope}}\ \textsf{and}\ {\large{(x_1,y_1)\ \textsf{is the given coordinate.}}[/tex]  

Given info:

A line with a slope of 1 and passes through the point (-3, 7).

Substitute the given values into the formula and simplify.

[tex]\implies y-7=1(x-(-3))[/tex]

[tex]\implies y-7=1(x+3)[/tex]

Answer:

(x - 5)² + (y + 2)² = 16

Step-by-step explanation:

Equation of a circle formula:  (x - a)² + (y - b)² = r²

where (a, b) is the center of the circle and r is the radius

Given, center = (5, -2) and radius = 4

Substitute this information in the equation of a circle formula.

⇒ Equation of the circle:  (x - 5)² + (y + 2)² = 16

Answer:

[tex]( \cot(x) - \csc(x) ) \times ( \cos(x) + 1) \\ \\ \\ ( \: (\frac{1}{ \tan(x) } ) - ( \frac{1}{ \sin(x) } )) \: \times ( \cos(x) + 1) \\ \\ \\ (( \frac{1}{ \frac{ \sin(x) }{ \cos(x) } } ) - ( \frac{1}{ \sin(x) } )) \times ( \cos(x) + 1) \\ \\ (( \frac{ \cos(x) }{ \sin(x) } ) - (\frac{1}{ \sin(x) } )) \times ( \cos(x) + 1) \\ \\ \\ \frac{ \cos(x) - 1}{ \sin(x) } \times ( \cos(x) + 1) \\ \\ \\ \frac{(( \cos(x) + 1) \times ( \cos(x) - 1) }{ \sin(x) } \\ \\ \\ \frac{ { \cos }^{2}(x) - 1 }{ \sin(x) } = \frac{ { - \sin }^{2} (x)}{ \sin(x) } \\ \\ = - \sin(x) [/tex]

Answer:

The coefficient of y is 0

Step-by-step explanation:

A coefficient is a number attached to a variable. Y has no number attached. The coefficient of y is 0.

Answer:

216

Step-by-step explanation:

Total of octagon amount is 1080, so set it equal.

x + 2x + 3x + 4x + 6x + 7x + 8x + 9x = 1080

45x = 1080

/45     /45

x = 24

Then plug in for largest number.

9 (24) = 216

Answer:

x = 12

Step-by-step explanation:

5^11 x 5^x = 5^23

All have same bases ( 5 ), so equal all exponents:

11 + x = 23

Now solve:

11 + x = 23

x = 12

Hopefully this helps!

Brainliest please?

Answer:

SA = bh + (s1 + s2 + s3)H

Step-by-step explanation:

Answer:

56m

Step-by-step explanation:

I think this is right. I hope!

you can find some if you scroll down on the page we're on.

They should kinda look like questions in little boxes.

They'll be under the header "New Questions in Mathematics"

don't feel bad, it took me a while too, they kinda blend in & no one would scroll down that far. I hoped this help you or someone else

have a great day :D

Answer:

72 magazines arrived late

Step-by-step explanation:

Take the total number of magazines and multiply by 15%

480 * 15%

Change the percent to decimal form

480 *.15

72

72 magazines arrived late

Answer:

she will need 8.4 so just get 9

If each box has 500 sheets, Megan should purchase 9 packs if she needs 4200 sheets of paper. ​

The area of arithmetic operations encompasses the study of numbers and their operations, which are essential to all other branches of mathematics. These systems use the four operations of addition, subtraction, multiplication, and division as their foundation. ​

It is given that, Megan purchases 4200 sheets of paper because each box has 500 sheets. ​

Suppose x be the number of packs,

Applying division to select how to share pack equitably among a group, divide the object into equal halves or groups.

The number of packs needed will be,

x=4200/500

x=8.4 ≈ 9

Thus, she should buy 9 packs if each pack has 500 sheets​.

Learn more about the arithmetic operations here,

https://brainly.com/question/25834626

#SPJ2

Answer:

composition,

function composition,

composite function

Step-by-step explanation:

(f ° g)(x) = f(g(x))

So we would work on this by putting all of g(x) into the x in the f(x).

Answer:

[tex]19\ 227\ 000\ m^{3}[/tex]

Step-by-step explanation:

The equation for volume of a rectangular prism is
[tex]V = \frac{hB}{3}[/tex]

[tex]B = lw[/tex]

V is volume

B is base

so if the base measures 522 multipled by 500

multiply length and width B = 522 • 500 = 261000

height is 221

V = [tex]\frac{hB}{3}[/tex]

Fill in variables V = [tex]\frac{221(251000)}{3}[/tex]

Multiply V = [tex]\frac{57681000}{3}[/tex]

Divide V = [tex]19\ 227\ 000\ m^{3}[/tex]

Answer:

um i dont know to be honest, but if i were you i'd just guess and hope for the best!!!

Rigid transformations do not change the size of a shape

The true statement is that figures A and B are congruent

From the question, we understand that the transformation is a rigid transformation

This means that the corresponding sides of figures A and B are congruent

Hence, the true statement is that figures A and B are congruent

Read more about transformations at:

https://brainly.com/question/4289712

Answer:

16.67%

Step-by-step explanation:

2 possibilities out of 12 = 2/12 which equals to a percentage of 16.67%

Answer:

B

Step-by-step explanation:

pi / 2 is equal to 180°/2 which is 90°.

Cos (90°) = 0

if cos90 = 0 then what kind of graph will we have at 90° to the x axis ?

a graph passing through the origin. (0,0)

Answer:

well, pick any old x, like for example x = 0

find y

0 - y = 9

y = -9

so

(0 , - 9)

now pick another x, like x = 1

3 - y = 9

y = 3-9 = -6

so

( 1 , - 6 ) and on and on until bored

Step-by-step explanation:

Answer:

Its 840$

Step-by-step explanation:

Because keep adding by the numbers to get the answer keep adding