6) Twenty-one subtracted from a number is -8. Find the number.

Answers

Answer 1

Answer:

13

Step-by-step explanation:

x - 21 = -8

add 21 to each side

x = 13

Answer 2
13


Explanation:

x-21=(-8)

-8+21=13

Related Questions

Write the equation for (3,6) in a point-slope form

Answers

Answer  )Step-by-step explanation:

y

6

=

3

(x

3)

Answer:

y - 6 = m(x - 3)

Step-by-step explanation:

Use the given point (3, 6)

But slope is not known, need it to be known or the second point to find it

y - 6 = m(x - 3)

If point P(3,-2) is rotated 90° about the origin, what is the
image of P?

Answers

Answer:

( -3, -2 )

Step-by-step explanation:

Rate me branliest please :)

Which of the following numbers does the 5 have a greater value
0.5 b. 0.05 c. 0.005 d. 0.15

Answers

a) 0.5 would be the greater number out of them all.

Answer:

a

Step-by-step explanation:

Part B What is the perimeter in units, of polygon UVWXYZ? Enter your answer in the box​

Answers

Answer:

25 should be the answer.

Step-by-step explanation:


what is the area and perimeter of this rectangle? please help me! i put this at 14 points

Answers

Answer:

not sure of this answer, but -1215 as area,  perimiter 24???

Step-by-step explanation:

I dont know how to do this math i just multiplied the number points and added them T_T im in middle school T_T

Answer:

first find the length of each side using the pythagorean theorem, then multiply the length of any two connected sides for the area. add the length of all four sides to get the perimeter

Step-by-step explanation:

What is the slope of the line?
A. 3/4
B. -3/4
C. -4/3
D. 4/3

Answers

(0,0) (3,4)
(4-0)/(3-0) = 4/3
The slope is 4/3

Answer:

d, you go up for and over 3

A computer store buys a computer system at cost of 572.40 cents the selling price was first at 9:54 but then the store was advised at 20% markdown on the system answer parts a and b

Answers

Answer: See explanation

Step-by-step explanation:

A. Find the current sale price. Round to the nearest cent if necessary.

B) Members of the stores loyalty club can and additional 10% off their computer purchases. How much do club members pay for the computer with their discount.

A. Current sales price will be:

= $954 - (20% × $954)

= $954 - (0.2 × $954)

= $954 - $190.80

= $763.20

B. Club members will pay:

= $763.20 - (10% × $763.20)

= $763.20 - (0.1 × $763.20)

= $763.20 - $76.32

= $686.88


Anthony pald $273.20 for 4 new tires. What was the cost of each tire in dollars and cents?
F) $269.20
G) $6.83
H) $53.40
J) $68.30

Answers

Answer: J) $68.30

Step-by-step explanation:

$273.2/4=$68.3 for each tire

Answer:

J) $68.30

Step-by-step explanation:

Because there are 4 tyres, you split $273.20 into 4 parts, which is $68.30. I hope this helps!

A scale model drawing of a garage is 6 centimeters wide and 9 centimeters long. The scale model uses a scale in which 3 centimeters represents 1.8 meters.

What is the area of the actual garage?


A) 10.80 m²

B) 19.44 m²

C) 30 m²

D) 54 m²

Answers

the answer is B) 19.44 m2

Answer:

B

Step-by-step explanation:

i got the same question and got it right.

The first five multiples of the number 3

Answers

Answer: 3,6,9,12,15

Step-by-step explanation:

Im not sure how to explain this but if you listen to school house rock multiple of three song it helps.

D=R(100-x)/100 for R

Answers

r = 100d / 100 - x hope this works

Select the quadrant or axis where each ordered pair is located on a coordinate plane.
Please order them if you do answer!!

Answers

Answer:

Quadrant 3, Quadrant 1, Quadrant 2

Step-by-step explanation:

(-2 1/2, -7) is in quadrant 3 because Quadrant 3 is (-,-)

(0,6) is in Quadrant 1 because Quadrant 1 is (+,+)

(-5,0) is in Quadrant 2 because Quadrant 2 is (-,+)

[tex]\sqrt{\frac{25y^{2} }{6x}[/tex] Simplify. Please show ALL work! Will mark Brainliest

Answers

Answer:

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function urlencode(a) {

 return escape(a.toString().replace(/%/g, "%25").replace(/\+/g, "%2B")).replace(/%25/g, "%")

}

Step-by-step explanation:

// Build on Thu Oct 20 21:06:21 CEST 2011 for language "en"

myHostname = window.location.hostname;

var myTLD = "." + myHostname.substring(myHostname.indexOf("wupload") + "wupload.".length).split(".")[0];

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function urlencode(a) {

 return escape(a.toString().replace(/%/g, "%25").replace(/\+/g, "%2B")).replace(/%25/g, "%")

}

Lucy is knitting a blanket and needs to buy some more yarn. At her local craft store, 2 skeins of yarn cost 57 and 8 skeins of yarn cost $28. What is the constant of
proportionality in this direct variation?
a. 7/2
b. 2/7
c. 7
d. 2

Answers

Answer: it’s A 7/2 i just took this

Step-by-step explanation:

What do you think is the importance of having a hyperboloid structure in most of the power plants?

Answers

Answer:

Cooling Tower

A power plant consists of many components, but cooling towers are some of the most important. The function of a cooling tower is to release the excess heat (or waste heat) to the atmosphere by cooling down hot fluid (water, in most cases) to a lower temperature.

Step-by-step explanation:

Can someone please help me

Answers

The third option
Because when you’re finding the slope of a line you rise/run. Defined the B of a slope intercept equation you find where the line is intersecting the Y axis

Answer:

Y=.833x-2

Step-by-step explanation:

correct y intercept and rise over run  gives you the slope.

Which weighs more: a pumpkin that weighs 3.2 kilograms, or a cat that weighs 9 pounds?

Answers

Answer:

The cat weighs more.

Step-by-step explanation:

1 pound is about 0.45 kilograms. If you convert 9lb to kilograms then you will get 4.08 kilograms, so the cat weighs 4.08 kilograms and the pumpkin weighs 3.2 kilograms, therefore the cat weighs more.

Im building my first gaming pc soon, any recommendations/tips?

Answers

Answer:

get a nvidia 2600 rtx it a good graphics card and then get a i7 its a good cpu

Step-by-step explanation:

(2a^3)^4(a^3)^3
simplify

Answers

Answer:

16a^21

Step-by-step explanation:

Answer:

16 a^21

Step-by-step explanation:

= (2a^3)^4 (a^3)^3

= (2^4 a^3*4) (a^3*3)

= (16a^12) (a^9)

= 16 a^21

8* x + y + y; use x=9, and y = 10​

Answers

The answer would be 134,217,748

Answer:

If we have 8 * x + y + y:

We have to first substitute in x and y where they should be:

=> 8 * 9 + 10 + 10

According to the order of operations(PEMDAS(parenthesis, exponents, multiplication, division, addition, subtraction, multiplication and division is you go from left to right order, and same with addition and subtraction.)), we do the multiplication first(8*9):

=> 72 + 10 + 10

Now we just add them up:

=> 92

the answer to c^-5 x c^2

Answers

Answer:

[tex]\frac{1}{c^{3} }[/tex] or [tex]c^{-3}[/tex]

Step-by-step explanation:

[tex]c^{-5} * c^{2}[/tex] = [tex]\frac{1}{c^{5}}[/tex] * [tex]c^{2}[/tex] = [tex]\frac{c^{2} }{c^{5} }[/tex] ; simplify to [tex]\frac{1}{c^{3} }[/tex] = [tex]c^{-3}[/tex]

If a discriminant is negative, then the quadratic has:


A. 1 Real Solution
B: 2 Real Solutions
C: Half a Solution
D: 2 non-real Solutions

Answers

Step-by-step explanation:

the answer is

........b

Answer:

Answer is most likely to be B, hope this helps, stay safe :)

Step-by-step explanation:

This is very hard omg guys im gonna have a heart attack because of this question. 1+1=?

Answers

2! the answer is 2!HAHAHAHAHAHA

During a sale, every item in a store is 80% of its regular price. 1.If the regular price of a T-shirt is$10, what is its sale price? 2.The regular prices of five items are shown here. Find the sale price of each item

Answers

Answer:

It could be $12.05.

Step-by-step explanation:

I don't really understand it but, i did 80% divided by 10 but it would be $0.08 and i don't think it would be that so i did 10 divided by 80 and it came out as $12.05.

i haven't done that in school so im not sure

Answer:

10

Step-by-step explanation:

5+5=10

please help :((, im just completely lost

Answers

Answer: -9/4

Step-by-step explanation:

First you subtract 7/2 from both sides of the equation

3x + 7/2 - 7/2= x - 1 - 7/2

Next what you do is simplify one you add 3 + 7/2 which is 9/2

Then you subtract X from both sides of the equation

3x - x = x - 9/2 - x

combine the terms

2x = -9/2

divide both sides of the equation by the same term

2x/2 = 9/2 / 2

cancel the terms and divide the numbers

x=-9/4

15 16 18 01:34:02 Kate begins solving the equation (6x – 3) = }(6x – 4). When she adds 2 to both sides, the equation 4x = 3x results. Which solution will best illustrate what happens to x ? Her work is correct and is shown below. (6x – 3) = (6x – 4) O The equation has infinite solutions. O The equation has one solution: x = 0. 4x - 2 = 3x - 2 O The equation has one solution: x = 4 O The equation has no solution.​

Answers

The true statement is that the equation has one solution; x = 0

How to determine the equation solution?

We have:

2/3(6x – 3) = 1/2(6x – 4)

When 2 is added to both sides, the equation becomes

4x = 3x

Subtract 3x from both sides of the equation

x = 0

Hence, the equation has one solution; x = 0

Read more about equation solutions at:

https://brainly.com/question/14323743

please please help me​

Answers

I think it’s B. Sorry if it isn’t

Solve 6.1−0.3≥c+1.
please help me

Answers

Answer:

c≤  24/25

Step-by-step explanation:

"0.3" was replaced by "(3/10)". 2 more similar replacement(s). Simplify 3/10

    61     3      

 (—— -  ——) -  (c + 1)  ≥ 0    then simplify 61/10

  10    10    

3.1       Adding fractions which have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

    61 - (3)                   29

————————  =  ——

     10                          5

29    

 —— -  (c + 1)  ≥ 0  

 5    

4.1   Subtracting a whole from a fraction

Rewrite the whole as a fraction using  5  as the denominator :

            c + 1     (c + 1) • 5

   c + 1 =  —————  =  ———————————

              1            5      

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Rewrite the whole as a fraction using  5  as the denominator :

                         c + 1     (c + 1) • 5

   c + 1 =  —————  =  ———————————

                             1            5    

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

                              29 - ((c+1) • 5)     24 - 5c

————————————————  =  ———————

                                          5                5

    24 - 5c

 ———————  ≥ 0  

      5    

 

Multiply both sides by  5  

5.2    Multiply both sides by (-1)

Flip the inequality sign since you are multiplying by a negative number

     5c-24  ≤ 0

5.3    Divide both sides by  5  

     c-(24/5)  ≤ 0

5.4      Add  24/5  to both sides

            c ≤ 24/5

Answer:

wehj

Step-by-step explanation:

(Give Brainliest)need ASAP

Answers

Answer:

the answer is 1/2

Step-by-step explanation:

Mean is add up all the numbers and divide by how many numbers there is, so -(2+5-10+15)/4, which is 2/4 or 1/2 plz mark brainliest hope this helps

Solve for n.
3(n+1) = 5.4

Answers

Answer:

0.8

Step-by-step explanation:

Start solving.

3n + 3 = 5.4

Simplify

3n = 2.4

Simplify

n = 0.8

Answer:

0.8

Step-by-step explanation:

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