what is -8 + x = 13
i don't get this i need help

Answers

Answer 1

Answer:

21

Step-by-step explanation:

this is because you take 13 and minus it by -8 like this:

13--8=x(21)


Related Questions

please help asap!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

w= -12

Step-by-step explanation:

okay I understood it now. Here you go.

You’re welcome :)

Answer:

w= -12

Step-by-step explanation:

x both sides by 24

4w + 15 + -33

move the constant to the right  and change its sign

4w= -33 -15

calculate the difference ...

4w = -48

divide both sides by 4

w= -12

Huda evaluated the expression below.

Negative 3 (8 minus 5) squared minus (negative 7) = negative 3 (3) squared minus (negative 7) = -3 (9) minus (-7) = 27 - (-7) = 34.

What was Huda’s error?

A. Huda evaluated (3) squared incorrectly.
B. Huda found the product of –3 and 9 as positive.
C. Huda subtracted –7 from 27 incorrectly.
D. Huda did not follow the order of operations.

Answers

Answer:

b Huda found the product of –3 and 9 as positive.

yeah-

I NEED HELP ON THIS TOOO!!! IMPORTANT!!!! EMERGENCY!!!!!

Answers

Answer:

$ 2188

Step-by-step explanation:

12.5%*17500=(12.5/100)*17500=12.5*175=2188

what does x = ? need help with the pythagorean theorem

Answers

Answer:

x = 13

Step-by-step explanation:

x = hypotenuse which is c in the Pythagorean theorem

c = √a^2 + b^2

c = √12^2 + 5^2

c = 13

Write an equation of the line that passes through (0, 3) and (−5, 2.5)

Answers

Answer:

y=.1x+3 I think that is the answer

Answer:

y=0.1x+3

Step-by-step explanation:

The slope is 0.1, (Y2-Y1/X2-X1) --> (2.5-3)/(-5-0)= -0.5/-5=0.1

The y-intercept is 3

y=0.1x+3

Kylie is preparing for the science fair that will take place in six weeks. She has three plants that she has grown from seeds, which she considers to have height 0 centimeters, and she is measuring their heights as she applies different treatments to each. The second plant is receiving Plant Food B. After 3 weeks, it is 10 centimeters tall. If it continues growing at this rate, how tall will it be after 6 weeks?

Answers

Might be 20 cm going based off the information after 6 weeks

The height of plant B growing at a rate of 3.33 centimeters per week should have a height of 19.98 cms.

What are lines and their slopes?

We know lines have various types of equations, the general type is

Ax + By + c = 0, and equation of a line in slope-intercept form is y = mx + b.

Where slope = m and b = y-intercept.

the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.

First we need two points (x, y) to obtain the slope.

Assuming height to be 'y' and weeks to be 'x'.

Therefore, (0, 0) and (3, 10) are the two points.

Slope(m) = (10 0)/(3 - 0).

Slope(m) = 10/3.

Slope(m) = 3.33

Now, To obtain the y-intercept.

10 = 3(3.33) + b

b = 0.01 Or neglegible.

Therefore y = 3.3x.

Now, In the 6th week, the height of plant B will be,

y = 3.33(6).

y = 19.98 or 20 cm.

learn more about lines and slopes here :

https://brainly.com/question/3605446

#SPJ2

b-2/9 = 4/2
Help me out plz :)

Answers

Answer: 20/9

or 2 2/9

Step-by-step explanation:

Mr. Gaines ordered 1,320 pencils for the beginning of the school year. He is going to divide the pencils into five equal groups to give to each grade level. How many pencils will each grade level receive?

Answers

1320/5 = 264 pencils

2. Multiply and simplify: (x - 2)(2x + 3)
Answer

Answers

Step-by-step explanation:

(x - 2)(2x + 3)

=2x²+3x-4x-6

=2x²-x-6

Answer:

2x^2-x-6

Step-by-step explanation:

use foil,

1) x*2x=2x^2

2) x*

majikalmochi avatar

i sent too early lol

2) x*3= 3x

majikalmochi avatar

3) -2*2x=-4x

4) -2*3=-6

majikalmochi avatar

now put that all together

2x^2+3x-4x-6

simplify

2x^2-x-6


what is the constant ​

Answers

Answer:

I have no clue but whatever it is it is

Step-by-step explanation:

puebes the knife go chop chop chop

I LIKE YOUR CUT G!!!

Answers

Answer:

thx:)

Step-by-step explanation:

Answer:

oof

Step-by-step explanation:

An equation is shown below. 2/3 (9x – 6) = 4x + 10 What is the value of x that makes the equation true?

Answers

Answer:

7

Step-by-step explanation:

A meteorologist at a television station reported that a town received 0.38 in. of rain. Which fraction is equivalent to this amount of rain in inches?

Answers

Answer:

19/50

Step-by-step explanation:

38 divided by 2 since 100 divided by 2 to get 19/50

please pick brainliest.

Could yall answer these in need to finish it in 7mins

Answers

Answer:

[tex] - 6 \\ - 9 \\ 6 \\ 42 \\ - 30 \\ 4 \\ - 6 \\ - 14[/tex]

Answer:

look below

Step-by-step explanation:

- have you already answered this

NEED HELP ASAP!
In this geometric sequence, what is the common ratio?
104, -52, 26, -13, ...

1/2
2
-1/2
-2

Answers

Answer:

the third one: -1/2

Step-by-step explanation:

if you multiply 104 by -1/2 you get -52, and so on the pattern will continue

Answer:

C. -1/2.

Step-by-step explanation:

Common ratio = -52/104 = 28/-52 = -13/26 = -1/2.

Jaclyn started the week with $284.28 in her checking
account. She withdraws $40 from the ATM, writes a
check for $48.39 for groceries. She also uses her
debit card at the gas station, spending $30.27 to fill
her car with gas. How much does Jaclyn have left in
her checking account?
de

Answers

Answer:

$165.62

Step-by-step explanation:

284.28-40-48.39-30.27=165.62

Answer:

She has 165.62$ left

Step-by-step explanation:

You just subtract all the numbers from her amount at the beginning lols

find x
please solve this q fastt​

Answers

your question is very difficult to answer

Answer:

x = 250

Step-by-step explanation:

∠ ABC = 180° - 55° = 125°

The angle at the centre x is twice the angle on the circle , that is

x = 2 × ∠ ABC = 2 × 125 = 250

Rounded to the nearest whole number, approximately how many inches is 8.39 kilometers?

A.
21,311 inches
B.
33,018 inches
C.
213,106 inches
D.
330,180 inches

Answers

Answer:

D. 330,180 Maybe?

Step-by-step explanation:

8.39 Kilometers = 330314.961 Inches

I rounded to 330,315

For each line highlight the point with coordinaates 1,k



Answers

Answer:

The answer is A

Step-by-step explanation:

A farmer buys several gallons, g, of fertilizer for $8.25 each and an irrigation unit for $65. He spends a total of $683.75. Write an equation that would help you determine the number of gallons of fertilizer the farmer bought.

Answers

8.25g + 65 = 683.75
Solve for g to find number of gallons

Answer:

Step-by-step explanation:

8.25(g)+65=683.75

Help what’s the answer to number 1 &2

Answers

Answer:

the first one is C

seconde is D

Answer:

3) a

4) c

Step-by-step explanation:

hope this helps!! :)

Which is the best estimate of 11 and one-fifth divided by 2 and three-fourths?

Answers

Answer:

4 should be the answer to the question

Answer:

11 1/5 divided by 2 3/4:

11 1/5 is a bit less than 12, and 2 3/4 is a bit less than 3  

The answer, therefore, should be fairly close to 12 ÷ 3

12 ÷ 3 is 4

Answer is 4

Step-by-step explanation:

How do I graph the line y = -2/3x + 3

Answers

Answer:

From (0,3) you go down 2 point then go right 3 points

The pitch of a roof is the number of feet the roof rises for each 12 feet horizontally. If a roof has a pitch of 8, what is its slope expressed as a positive number?

Answers

If the pitch is 8, it means the roof raises 8 ft. per each horizontal 12 ft.
Since slope, m, is defined as the rise/run; then m = 8/12. Simplifying, we obtain a slope m = 2/3 In order to write the line of the roof as an equation, let's assume that the roof line starts at the origin (0, 0); it rises 8 units for every 12 it advances; up to the point (12, 8). At this point, the roof descends at the same rate until it reaches the point (0, 24). We need to set two equations with the given constraints: y = mx + b since the roof ascend from (0, 0) up until (8, 12) we use a positive slope: y = 2/3x + b If we use (0, 0) to define b, then the equation of this section of the roof will be:
y = 2/3x 〈0 ≤ x ≥ 12〉 At (12, 8) the roof starts descending at the same rate, then we use the negative slope m = -2/3: y = -2/3x + b Now, let's use (12, 8) to define b: 8 = (-2/3)(12) + b Simplifying, we obtain b = 16, ∴ the equation of this section of the roof will be: y = -2/3x + 16 〈12 ≤ x ≤ 24〉

confused, i forgot how to do this

Answers

Answer:

a) x = 5b) x = 4

Step-by-step explanation:

a)  

4x - 3 = 2x + 7

4x - 2x = 7 + 3

2x = 10

x = 10 / 2

x = 5

b)

2x + 6 = 7x - 14

6 + 14 = 7x - 2x

20 = 5x

x = 20 / 5

x = 4

For b, x=5 and for a, x=4.

what is the vertical change from point A to point B ?

What is the horizontal change to point A to point B?

Answers

Answer:

Vertical change= 1

Horizontal change= 2

Rate of change=  1/2

Step-by-step explanation:

The vertical change is how many units you go up on the triangle and the horizontal change is how many units you go left or right on the triangle. The rate of change is the vertical change over the horizontal change. So that is why 1/2 is the rate of change. Have a great day!

Answer:

4

Step-by-step explanation:

Find an equation for the line below.
8-
0
Check

Answers

Answer:

okay so the equation for the line could be writen in y=mx+b form

Step-by-step explanation:

y = [tex]\frac{9}{5}x + \frac{21}{5}[/tex]

Help plz plz plz plz

Answers

Answer:

0.6

hope this helps ^^

I also hope you get s good grade!

6/10= 0.6!!!

also you can search it up

HELP WILL GIVE BRAINIEST AND 60 POINTS AND 5 STARS!!!! ITS DUE IN 10-15 MINUTES!!! Which of these 4 numbers are rational numbers and which one of them is the only one that is irrational? and explain why you got ur answer using math terminology or math logic

Answers

Answer:

[tex]\sqrt{21}[/tex] does not belong

Step-by-step explanation:

a rational number is defined by any number that ends or repeats.

[tex]\sqrt{36\\}[/tex] ends because it is just 6

[tex]\frac{2}{3}[/tex] repeats so it is rational

[tex]\frac{1}{5}[/tex] ends becuase it is just 0.2

but [tex]\sqrt{21}[/tex] does not end nor repeat, making it irrational

Answer:

21 is the irrational one

Step-by-step explanation:

you cant multiply to of the same whole numbers by itself and get 21

three-quarters of a number is 15. what is four fifths on the number

Answers

Answer:

12

Step-by-step explanation:

3/4 x = 15
3 x = 60
x = 20

4/5 x 20 = 16
Answer: 16
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