Solve the equation for x. Square root of x = 20

Answers

Answer 1

Answer:

x = 16

Step-by-step explanation:

Subtract x from both sides of the equation

[tex]\sqrt{x} = 20 - x[/tex]

To remove the radical on the left side of the equation, square both sides of the equation.

[tex]\sqrt{x}^{2} = (20 - x)^{2}[/tex]

Simplify each side of the equation.

[tex]x = (20 - x)^{2}[/tex]

Solve for x.

[tex]x = 25, 16[/tex]

Exclude the solutions that do not make [tex]x + \sqrt{x} = 20[/tex] true.

x = 16


Related Questions

a car is traveling down a highway at a constant speed, described by the equation d=55t, where d represents the distance, in miles, that the car travels at this speed in t hours.

Answers

Step-by-step explanation:

69

can somebody help me?

Answers

Answer:

15x + 7

Step-by-step explanation:

8x + 16 + 7x - 9 =

15x + 7

Hope that helps!

In the kite below, mAngle B is-congruent-to mAngle D. The measure of Angle D = 87 degrees, and the Angle C = 74 degrees.

What is the measure of Angle A?
90°
112°
122°
199°

Answers

Answer:

112°

Step-by-step explanation:

Answer:

112

Step-by-step explanation:

Find the volume of the pyramid

1120
3360
560
1680

15 points!!

Answers

[tex] \huge \underline \pink {answer}[/tex]

1120

[tex] \huge \underline \pink {solution}[/tex]

ℹ️we have to find base area of the given pyramid first..ℹ️

▶️ let the base of the pyramid be "x"

▶️ x = width of the base × length of the base

▶️ x = 16 × 14

▶️ x = 224

hence the base is 224.. Now ,

▶️ volume of pyramid = 1/3 × base area × height

▶️ volume of pyramid = 1/3 × 224 × 16

▶️ volume of pyramid = 1120³

EASY!! PLEASE HELP!! A silo casts a shadow that is 99 feet long. Next to the silo is an 18-foot-tall barn that casts a shadow that is 13.5 feet long. How tall is the silo?

Answers

Answer:

74.24ft tall, you were right!

Step-by-step explanation:

13.5/18 = 0.75

This is the ratio of shadow by actual height that you will use to find the height of the silo so now you multiply:

99*0.75 = 74.25

74.25 is the exact measurement of the taller silo's height.

m/4=16 what does m equal?

Answers

Answer: m=64

Step-by-step explanation:

Multiply 16*4=64

64/4=16

Answer: M=64

Step-by-step explanation:

hope this helps

have a nice day/night

bye ^_^

The unit of ratio is expressed in
a) Metre
b) Gram

Answers

The unit of ratio is expressed as none. Ratio comprises of similar type of quantities so the units cancel out each other and thus there is no unit for a ratio. There is no unit for ratio. The numbers in the ratio will be of same unit - the unit can be meter or gram or litre or any such unit.

someone pls help me!!

Answers

Answer:

[tex] r = \frac{12\sin 20\degree}{ \sin 35\degree } [/tex]

Step-by-step explanation:

By sine rule

[tex] \frac{r}{ \sin \angle R } = \frac{p}{ \sin \angle P} \\ \\ \frac{r}{ \sin 20\degree } = \frac{12}{ \sin 35\degree } \\ \\ r = \frac{12\sin 20\degree}{ \sin 35\degree } [/tex]

Five years ago mean age of a family was 25 years. What is the present mean age of the family?​

Answers

Answer:Let the number of family members be 'x'

Let the number of family members be 'x'the average age of the family members 5 years ago is 25 years so the sum of age of all family members 5 years ago =25x the sum of age of these family members now and after 5 years elapsed =25x (these added 5 years no of family members) =25x+5x=30x Sum of ages =30x no. family members be x

Let the number of family members be 'x'the average age of the family members 5 years ago is 25 years so the sum of age of all family members 5 years ago =25x the sum of age of these family members now and after 5 years elapsed =25x (these added 5 years no of family members) =25x+5x=30x Sum of ages =30x no. family members be xTherefore, current, average age = sum of ages/no. of members = 30x/x=30


Payal is putting books on her bookshelf. She has 32 books.
She puts 8 books on each shelf. How many shelves have 8
books?
Your answer
1 point
cl

Answers

Answer:

4

Step-by-step explanation:

[tex]04\\ 8\sqrt{32} \\[/tex]

Please tell i really need the answer:
Q7) A rectangular piece of land measures 8 m by 5m. It is to be fenced with four lines of wire. What length of wire is needed for fencing?

Answers

Answer:

26m

Step-by-step explanation:

8m x 2 = 16

5m x 2 = 10

16m + 10m = 26m of wires

Leon has 5 plates. He puts 9 grams of cheese onto each plate and has no cheese left over. How many grams of cheese does Leon have?​

Answers

Answer:
45 grams of cheese
Explantation:
9 grams of cheese onto each plate x 5 plates = 45 grams of cheese
Hopefully this helps :3 Sorry If wrong :( plz mark brainiest if correct :D Your bootiful/handsome! Have a great day luv <3
-Bee~

(5-3i)+(4+2i) what is the solution ?​

Answers

Answer:

−14+22i

Step-by-step explanation

yourwelcome

Answer:

-i + 9 should be the right answer

Please help me..........

Answers

Answer:

the answer for x is 25

hope this is the answer you are looking for

Step-by-step explanation:

Need help with 20! Have a nice day

Answers

[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the Profit and loss.

Since, in the comparison for the better buy than the 4 boxes for $3.79 is

Option A.) 6 for $5.75

because all other three are costlier than the their original price,

also, 3.79/4 = $0.94

if, $0.94 * 6 = $5.685

so, $5.685 means,the the buy is better that original price.

What is the Average?

Answers

Answer:

-3

Step-by-step explanation:

Answer:

average =(-34+-37)/2=-71/2=-35.5

At the shelter, 97% of the dogs are puppies. There are 100 dogs at the shelter. How many are puppies?

Answers

Answer:

Step-by-step explanation:

100(97/100)=97 puppies.

2x + 3y , x = 7 , y = 3

Answers

Answer:

23

Step-by-step explanation:

plug in

2(7)+3(3)

14+9

23

Answer:

23 is the answer

Step-by-step explanation:

2*7+3*3

14+9

23

What do you do when you are working on a math word problem

Answers

Answer: Read the problem out loud to yourself.

Draw a Picture.

Think “What do I need to find?”

List what is given.

Find the key words.

Solve.

Check your work.

Step-by-step explanation: hope this helps :)

Write the numerical coefficient of ‘q’ in the expression 10p ― 5q + 24​

Answers

Answer:

-5 is your answer

Step-by-step explanation:

Hope it helps you

What is the value of x to the nearest
tenth?

Answers

Answer:

C. 17.6

General Formulas and Concepts:

Math

Rounding

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Trigonometry

[Right Triangles Only] SOHCAHTOA[Right Triangles Only] tanθ = opposite over adjacent

Step-by-step explanation:

Step 1: Identify Variables

Angle θ = 40°

Opposite Leg = x

Adjacent Leg = 21

Step 2: Solve for x

Substitute in variables [tangent]:                                                                   [tex]\displaystyle tan(40^\circ) = \frac{x}{21}[/tex][Multiplication Property of Equality] Isolate x:                                                [tex]\displaystyle 21tan(40^\circ) = x[/tex]Rewrite:                                                                                                           [tex]\displaystyle x = 21tan(40^\circ)[/tex]Evaluate:                                                                                                          [tex]\displaystyle x = 17.6211[/tex]Round:                                                                                                            [tex]\displaystyle x \approx 17.6[/tex]

Answer:

C. 17.6

Step-by-step explanation:

tan(40) = x/21

(21) tan(40) = x/21 (21)

21 * tan(40) = x

17.6 = x

-16t^2 + 121t + 1

Help me pleaseeee!

Answers

You first subtract and a e. E see where that gets you subtract or add the first number

The first is 4 inches wide and 15 inches long. ​The second is 9 inches wide. ​ ​Find the length of the second rectangle. A 6.67 inches B 2.4 inches C 41 inches D 33.75 inches

Answers

Answer:

D - 33.75

Step-by-step explanation:

If the rectangles are similar, then you can use this cheat:

Width:

9/4 = 2.25

2.25 is the scale factor between the two rectangles.

Using the new-found scale factor, you can do this:

15 x 2.25 = 33.75

This means the length on the second rectangle is 33.75 inches long.

Hoping this helps you! :)

express each of the following numbers as a product of as many factors as possible,including repeated factors.Do not use 1 as a factor​
(a) 36 (b) 37 (c) 38

Answers

36=6+6+6+6+6+6=6X6

36=4+4+4+4+4+4+4+4+4=4X9

36=18+18=18X2

37=18,5+18,5=18,5X2

37=9,25+9,25+9,25=9,25X4

38=19+19=19X2

38=9,5+9,5+9,5+9,5=9,5X4


[tex]x - 1 = \sqrt{ \frac{y + 7}{2} } [/tex]

Answers

Solving for x:

[tex]x = \sqrt{ \frac{y + 7}{2} } + 1[/tex]

Step-by-step explanation:

1) Just add 1 to both sides.

Solving for y:

[tex]y = 2( {x}^{2} - 2x + 1) - 7[/tex]

Step by step explanation:

1) Square both sides.

[tex] {x}^{2} - 2x + 1 = \frac{y + 7}{2} [/tex]

2) Multiply both sides by 2.

[tex]( {x}^{2} - 2x + 1) \times 2 = y + 7[/tex]

3) Regroup terms.

[tex]2( {x}^{2} - 2x + 1) = y + 7[/tex]

4) Subtract 7 from both sides.

[tex]2( {x}^{2} - 2x + 1) - 7 = y[/tex]

5) Switch sides.

[tex]y = 2( {x}^{2} - 2x + 1) - 7[/tex]

Therefor, the answer for Y is y = 2 ( x² - 2x + 1) -7.

Can someone tell me what x equals!

Answers

Answer:

12

Step-by-step explanation:

hope u find this helpfull

Answer:

Step-by-step explanation:

x = 12

the triangle was made smaller (i forget what the term is)

it was made smaller by  [tex]1\frac{1}{3}[/tex]

to find that you divide 24 by its equivalent side on the other triangle which would be 18

24 / 18 =  [tex]1\frac{1}{3}[/tex]

to find what x is equal to you have to find the equivalent side on the other triangle. this would be 16. since the triangle with 16 is bigger the equation is:

16 / [tex]1\frac{1}{3}[/tex] = 12

so x = 12

2x+a=5-bx
PLEASE HELP THIS IS SUPER URGENT.... WHOEVER ANSWERS WILL BE MARKED BRAINLIEST

Answers

Answer:

If x is 4 and b is 6 the equation would have one solution

if x is 7 and b is 5 the equation would have no solutions

if x is 8 and b is 6 the equation would have infinitely many solutions

Step-by-step explanation:

i meant to type a.

just pretend x = a

mark me as brainliest pls

If I had 60 units needed and units per case was 14 how many cases and additional units I got

Answers

Answer:

4 with a remainder of 4

Step-by-step explanation:

60 divided by 14 is 4 with a remainder of 4

The additional number of units required is 10 units.

Given that:

Total number of units needed = 60 units

Total number of units per case = 14

How to find the total number of cases required for the given question?

So, the total number of cases required=Number of units needed / number of units per case.

Number of cases required = 60/14 = 4.285 (this means that 5 cases are required as 4 cases won't be up to 60 units)

With 5 cases, we have exceeded the required units needed :

Additional units will be : (14×5) - 60

Additional units = 70 - 60 = 10 units

Therefore, the additional number of units required is 10 units.

To learn more about the unitary method visit:

https://brainly.com/question/23423168.

#SPJ2

For the end-of-year party, Mt. Rose Middle School ordered a total of 112 pizzas. There were eight fewer veggie pizzas than there were pepperoni pizzas. There were three times as many combo pizzas as pepperoni pizzas. How many pepperoni pizzas were ordered?

HELPPPPP PLSSSSSSSSSS

Answers

Answer:

24 Pepperoni pizza

Step-by-step explanation:

v = veggie

p = pepperoni

c = combo

v+p+c=112

p-8 = v

3p=c

substitute both values in equation above, thus,

p-8+p+3p = 112

5p-8=112

5p=120

p=24

A photographer rented a booth at an art fair for
$630. The photographer sold each photograph
for $45 and made a total of $1,980 after
paying for the booth. How many photographs
did the photographer sell at the fair?

Answers

Answer:

58

Step-by-step explanation:

1980+630 then divide by 45

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