Help pls I will give brainliest and 5 STAR RATING BUT NEED A EXPLANATION

Answer:

6

Step-by-step explanation:

to get this awnser we know that she can read 2 chapter in 10 minutes

so if we double this it would be 4 chapters in 20 minutes

then 6 chapters in 30 minutes

we can also find this by dividing 30/10 =3

then times that by the ammount of chapters 2x3=6

Answer:

what? better explanation

Answer:

I can't see it.

Step-by-step explanation:

Answer:

2.5

Step-by-step explanation:

First I added -2 and 4, which is positive 2. Then I added -.4 to .9 which is .5. I hope this helped!

Answer:

Question 3 is- B. 8 ounces

Step-by-step explanation:

Answer:

m = -1/2

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below =)

Answer: -4

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex]f(x)=-4x+7[/tex]

To find f(1) , substitute the value of x that's 1 into f(x), that is for every x in f (x) replace it with 1

We have

[tex]f(1) = - 4(1) + 7 \\ = - 4 + 7 \\ = 3 \: \: \: \: \: \: \: \: \: \: \: [/tex]

We have the final answer as

[tex]f(1) = 3 [/tex]

Hope this helps you

Answer:

it is the furth 4

Step-by-step explanation:

4×4=16

Answer:

the fourth answer

Step-by-step explanation:

and how are u today

Answer:

-2(-5)^2+7

-2(25)+7

-50+7

-43

180°-45°=135°

135=2x-5

135+5=2x

140/2=x

x=70

Answer:

Y= -x - 1

Step-by-step explanation:

Answer:

y= -x - 1

Step-by-step explanation:

i just got it right

Answer:

Keyunta and Elijah

Step-by-step explanation:

Keyunta: 49.78, Elijah: 50.02

|Keyunta(time)-Elijah(time)| = 50.02-49.78 = 0.24

The two runners had 0.24 seconds between their finish times Kayenta and Elijah.

The study of statistics focuses on gathering, organizing, organizing, analyzing, interpreting, and presenting data. It is customary to start with a statistical population or a statistical model to be researched when applying statistics to a scientific, industrial, or social problem.

The given table is:-

Runner        Time (seconds)

Jamarcus    50.51

Kayenta      49.78

Mica            48.44

Elijah           50.02

Checking the difference between the running times.

Jamarcus    50.51

Mica          -  48.44

______________

                    2.07 Seconds

Elijah           50.02

Kayenta    -  49.78

---------------------------

                  0.24 Seconds

Therefore, the two runners had 0.24 seconds between their finish times Kayenta and Elijah.

To know more about statistics follow

https://brainly.com/question/15525560

#SPJ2

Answer:

x=1/3

Step-by-step explanation:

(18x+3)^2=81

square root both sides

18x+3=9

subtract 3 from both sides

18x=6

divide 18 on both sides

x=1/3

Answer:

yes

Step-by-step explanation:

Answer:

2 and 4/5

Step-by-step explanation:

If you ate 2/5 of a pizza in 1/7 of an hour then you need to multiply 2/5 by 7

Start by converting 7 into a fraction

7 = 7/1

then multiply the top and bottom of the fractions

2 * 7 = 14

5 * 1 = 5

2/5 * 7/1 = 14/5

Convert 14/5 into a mixed number

14/5 = 2 and 4/5

Answer:

60%

Step-by-step explanation:

Answer:

C. 60%

Step-by-step explanation:

Answer: y=3x-3

Step-by-step explanation: Formula: y=mx+b The slope is m which is 3, rise over run, and b is the y-intercept which is -3.

Answer:

y=3x+-3

Step-by-step explanation:

the slope is 3/1 which is 3.

the y intercept is the point at which theine crosses te y axis so it's-3

y=mx+b

y=3x+-3

Answer:

4π + 33 or 45.6

Step-by-step explanation:

For this question, you need to identify the perimeter of the semicircle and the 3 sides of the trapezoid.

The perimeter of the semicircle would be (this is the equation for a circle divided by two):

(2πr)/2 or (πd)/2

To figure this out, you don't need to know the radius, because you can just use the diameter, in which case if you plug it in you would get:

(8π)/2

→ 4π

Now you would just add the perimeter of the semicircle to the perimeter of the 3 sides of the trapezoid to get:

4π + (10+13+10)

→ 4π + 33

Now all you'd need to do is round 4π to the tenths place to get:

12.6 + 33

→ 45.6

Answer:

The answer is 15.

Step-by-step explanation:

d =  sqr. root of (x_2 - x_1)^2 + (y_2-y_1)^2}

= sqr. root of  7- - 2 ^ 2 + 3 - - 9 ^ 2

= sqr. root of 9 ^ 2 + 12 ^ 2

= sqr. root of 81 + 144

= sqr. root of 225

= 15

Answer:

z = -4

Step-by-step explanation:

I'm going to assume you mean solve for z.

5z - 8 = -28

add 8 to both sides.

5z = -28 + 8

5z = -20

divide both sides by 5

z = -4

Answer: The answer would be −4.

First add eight to both sides.

5z−8+8=−28+8

5z=−20

Now divide both sides by five.

5z  divided by five = -20 divided by 5.

z=−4

Answer:

n ÷ (2 - 3) ≤ 2

Step-by-step explanation:

Let n be 'the number'

n is divided by 3 less than 2

n ÷ (2 - 3) is at most 2

n ÷ (2 - 3) ≤ 2

I hope this helps :)

Answer: X= - or + square root of 10

Step-by-step explanation: both negative or positive roots would multiply to be 10

19, 85, and 182 i am cool YEE YEE BRAINLYEEST PLES

Answer: x=1.25y

Step-by-step explanation:

each can is 1.25 and i’m pretty sure the question is just asking for the unit rate in a equation

Answer:

A. x=35

B. C= 59 degrees

Step-by-step explanation:

Since both angles have the same measurement you set them equal to each other as so & solve for x

3x+16=5x-54

16=2x-54

70=2x

x=35

Now we plug 35 into one of the equations

3(35) + 16

105+ 16 = 121 degrees

Since angle C is a supplementary angles you do 180-121= 59 degrees

Answer:

this question cannot be solved

Answer:

183

Step-by-step explanation:

Sub the values into the expression

-(-3)² - (-3)(8²)

-9 - (-192)

-9 + 192

183

Answer:

4, 6, 10, 12 I think are the sides the perimeter=32

Step-by-step explanation: