There are 20 students in a math class who have brown hair. This represents 80 percent of the students in the class. Which equation can be used to find the total number of students in the math class?

Answer:

The answer is A. 1,200

Step-by-step explanation: You have to muliply all the numbers in order to get your answer.

It would happen because 5 is 5 4 is 4 3 is 3 2 is 2 1 is 1 and 0 is only one number 0.

If we fold a number line so that a vertical crease goes through 0, the points will match up for the same because of the same distance on both sides from zero.

A number line is a straight line representing numbers on it either vertically or horizontally.

If we fold a number line so that a vertical crease goes through 0, the points will match up for the same. this is due to the reason the points on a number line from zero are at the same distance on both sides so, the numbers will superimpose on each other when folded vertical through 0.

Since the distance of 1 and -1 is the same as zero so 1 would match -1.

Similarly for -2 and 2, -3 and 3, etc.

Learn more about number line here:

https://brainly.com/question/557284

Answer:

6584.22

Step-by-step explanation:

used a calculator (ti-84 plus tx instruments)

Answer:

x=22

Step-by-step explanation:

<HMQ- 4x-20

<RMF-x

<HMQ+<RMF=90

4x-20+x=90

5x=110

x=22

<HMQ=68

<HMS=22

<SMP=90

<HMP=112

Hope that helps!

Answer:

the answer is D, 15

Step-by-step explanation:

multiply to find the lcm!

(please pick as brainlyist!)

Answer:

D. 15

Step-by-step explanation:

if u are adding 5 and adding 3 then it will be 15

Answer:

y = -1/2x -7

Step-by-step explanation:

. The slope of the line (rise over run) goes down so it's negative and it you go down (bc it's negative slope) 1 and go over 2 so it would be -1/2

. B stands for the y intercept so it would be -7 because the line goes through -7 on the vertical line.

A. Mean deviation is the range of the mean essentially.

Hope it helps

Answer:

45 min

Step-by-step explanation:

15 x 3

Answer:

1.93359375

Step-by-step explanation:

Answer:

1 239/256

Step-by-step explanation:

v= (1 3/8) (5/8) (2 1/4)

(11/8) (5/8) (9/4)

(55/64) (9/4)

495/ 256

1 239/256

Answer:

3/8

Step-by-step explanation:

Answer:

Step-by-step explanation:

3/4 of the 3/8 she had left = 9/32

The amount of cake eaten is (1-3/8) eaten at the party+ (9/32) she ate at lunch= 5/8+9/32= 29/32

The whole cake (1) from the eaten cake (29/32) is:

1-29/32= 3/32

Answer:the third one

Step-by-step explanation:

Answer:

it is the third one(200)

Step-by-step explanation:

you have to do base times height, the base is 20 and the height is 10. So you do 20x10 and you get 200. Hope this helped!

Answer:

slope-intercept form y-10=2 (x-1)

Step-by-step explanation:

Simplify

−

1

2

⋅

(

x

−

10

)

.

Tap for more steps...

y

−

10

=

−

x

2

+

5

Move all terms not containing

y

to the right side of the equation.

y=−x2+15

Rewrite in slope-intercept form.

y=−12x+15

Answer:

Step-by-step explanation:

FIRST ONE D

SECOUND ONE IS 52

THRID 505

FORD 40

FIVE 18

Answer:

1. 2

2. 30

Step-by-step explanation:

1. The weird circle looking thing essentially means you're putting p(x) inside of q(x). This means you take the x in q(x) and replacing with the entire p(x)

so q(x) = -3x - 4

(q °p)(x) = -3 (-2x+4) -4  sorry I can't find the actual circle thing symbol

now distribute to get the simplified equation:

= 6x -12 -4

= 6x - 16

because you're doing (q - p )(3), you would plug 3 for x into the new equation

6(3) - 16 = 2

and thats you're answer for the first one

for the second one its the other way around, so you're putting all of q(x) into p(x)

take p(x) : -2x+4

and now replace the x with the entire q(x)

so (p - q)(x) = -2 (-3x-4) +4

simplify: = 6x+8+4 = 6x+12

so now since we're doing (p-q)(3), we need to plug in 3 for x in the new equation

= 6(3)+12 = 30

lmk if those were wrong or if my explanation was unclear, there's another way I can explain it even though its the same process :)

Step-by-step explanation: Hope this help :D

−4m−2 1/4−6 1/4

Answer: =−4m−8 1/2 (Decimal: -4m+\,{-17}/{2}\,)

Answer:

32m

Step-by-step explanation:

Because You Have To Count 14m 6m 12m=32m together but  all together tho is 86m

Answer:

its 648 m^2 because the formula is  A=2(wl+hl+hw) so you fill in the lengths, widths, and heights, and then you get 648 m^2

Answer:

80

Step-by-step explanation:

Answer:

6.28

Step-by-step explanation:

i dont know i tried. I got about 377 minutes

Answer:

a i think

Step-by-step explanation:

Answer:

a - b = 12

Step-by-step explanation:

- Factorise a² - b²

-  Crossed out common factors, (x + a)

--------------------------------------------------))

Hope this helped

Answer:

a-b=12

Step-by-step explanation:

Please consider Brainiest! ; )

Answer:

3 ways you can get the spider

Step-by-step explanation:

Answer:

it is b 12 cm

Answer:

40 percent :)

Step-by-step explanation:

Answer:

-3d - 3d

i think because 8d and 5d are like terms

or.. -3d +8d -5d= 0

Answer:

1a) $11,610

1b) $967.5

2) 15.826

3) 20%

Step-by-step explanation:

1a)

27/100 = .27

.27(43,000) = $11,610 a year

1b) $11,610 / 12 months = $967.5 a month

2)

19.3/100 = .193

.193(82) = 15.826 hits

3) 16/80 = .2

.2(100) = 20%

I don't know what you are asking for 4 and 5.

Answer:

36°

Step-by-step explanation:

finger slipped one sec

Answer:

36°

Step-by-step explanation:

Answer:

So, following the (X,Y) rule, these are where you put the coordinates.

Step-by-step explanation:

(2000, 10)

(2001, 10)

(2002, 20)

(2003, 40)

(2004, 55)

(2005, 70)

Just for places, I added a picture below.