Mathematics Middle School

please solve x+9.72=21

Answers

Answer 1
11.28 because you need to get the variable by itself so you subtract 9.72 from 21
Answer 2
11.28=x that is the answer all you have to do is subtract 9.72 on both sides 

Related Questions

6 + 8 ÷ 2 A.3 B.7 C.10 D.12

Answers

Using the order of operations, division comes first then addition.

6 + 8 ÷ 2
6 + 4
10

So, C 10 is the answer.
Use PEMDAS

Firstly divisions.

6 + (8:2) =

6 + 4 = 10

Answer C

At a snack shop, Julie bought 1/3 of a pound of jelly beans for three quarters. What is the unit price of jelly beans at the snack shop?

Answers

9 quarters or $2.25 because if 1/3 of a pound is 3 quarters then 1 pound is 9 quarters because you have to multiply both of them by three.

What symbol is greater than

Answers

> is the symbol for greater than
Greater than >
Less than < 
Equal to =
Greater than or equal to ≥
Less than or equal to ≤

34 + 2 ⋅ 5 = ____. (Input whole numbers only.)

best answer gets BRAINIEST!!!!!!

Answers

34 + 2 * 5 =
34 + 10 =
44 <==
The answer is 44.

34 + 2 x 5
34 + 10
44

Highlighter pens cost $3.86 per set at an office supply store. Which equation can be used to determine the price, P, of n sets of these pens? n = 3.86P P equals 3.86 over n n equals 3.86 over P P = 3.86n

Answers

The last Equation is Correct: P = 3.86n
Meaning N as the number of sets and P as the total price of the # of sets times the unit price.
P=3.86n 
P=Price
N=Number of pens you buy
The price depends on the number of pens that you buy. Each pen costs $3.86, so you will have to multiply the price of each pen by the number of pens that you buy and it will give you your price to pay.
Hope this helped.

Which transformation can verify congruence by sliding one triangle over another

Answers

Translation by moving the two shapes to the same points you can verify its congruence. 

What is the length of segment RS

Answers

The length of segment RS must be 13 units.

To find this, you can make a right triangle by connecting points R and S at a common point to form a right angle. The segments made would be 5 units and 12 units long. Using the Pythagorean Theorem, the segment RS must be 13 units.

Answer: 13 units


Step-by-step explanation:

The length of line segment AB with points [tex]A(x_1,y_1)\ and\ B(x_2,y_2)[/tex] is given by distance formula as :

[tex]\text{AB}=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Now, the length of line segment RS with points [tex]R(-4,-3)\ and\ S(1,9)[/tex] is given by distance formula as :

[tex]\text{RS}=\sqrt{(1-(-4))^2+(9-(-3))^2}\\\Rightarrow\ RS=\sqrt{(5)^2+(12)^2}\\\Rightarrow\ RS=\sqrt{25+144}=\sqrt{169}\\\Rightarrow\ RS=13[/tex]

Hence, the length of segment RS= 13 units

subtract the fractions and simplify answer: 9- 5 1/3

Answers

Hey there!!

Here is the process...

9 - 5 1/3
9 - 16/3
27/3 - 16/3
11/3         <------ This is the answer!


I hope this helps! ^__^

Answer:

3  2/3

Step-by-step explanation:

9 - 5  1/3

9 = 8  3/3

8  3/3 - 5  1/3 = 3  2/3

Hope this helps :)

Gabriel drives 80 kilometers in one hour. if he drives at the same speed, how many kilometers can he drive in 3.75 hours?

Answers

80/4=20 20/4=5  The answer to this problem is 300 Kilometer in 3.75 hours

Is it possible for two different inputs to give you the same output? Justify your answer please.

Answers

yes it is possible. input and outputs yayyyy
Yes it to is possible

I REALY NEED HELP!
A kite’s diagonals WY and ZX intersect at point V. Which of the following are true? Select all that apply.
1.)∠WVX = 90°
2.)∠ZVY = 90°
3.)WY is parallel to ZX
4.)WY is perpendicular to ZX
5.)WY = ZX

Answers

its 1 , 4, 5 thats the answers

Answer:  The correct options are

(1)∠WVX = 90°,

(2)  ∠ZVY = 90°

and

(4) WY is perpendicular to ZX .

Step-by-step explanation:  Given that WY and ZX are the diagonals of a kite that intersect at the point V.

We are to select the correct statements from the given options.

KITE: A quadrilateral having adjacent sides congruent and the diagonals bisect each other perpendicularly.

As shown in the attached figure, WY and ZX are the diagonals of the kite WZYX.

Since WY and ZX intersect at the point V, so they will bisect each other perpendicularly.

That is, WY is perpendicular to ZX. And, also

∠WVZ = ∠WVX = ∠ZVY = ∠XVY = 90°.

Since WZ is perpendicular to ZX, so they cannot be parallel.

Also, since the diagonals of a kite may not be equal, so WY ≠ ZX.

So, options (3) and (5) are incorrect.

Thus, the correct options are

(1)∠WVX = 90°,

(2)  ∠ZVY = 90°

and

(4) WY is perpendicular to ZX .

A rectangle has a perimeter of 84 meters and a length of 35 meters. What is the width of the rectangle?

Answers

To find the perimeter of a rectangle, we can use this formula: [tex]2L + 2W[/tex]
Where L is the length and W is the width.

We know the perimeter and we know the length and we want to find the width.
Substitute the values back into the formula.

2(35) + 2W = 84
70 + 2W = 84
2W = 14 <-- Subtract both sides by 70
W = 7 <-- Divide both sides by 2

So, width is 7 meters long.

84 - (35*2)
84 - 70
14 / 2
The width of the rectangle is 7.

Calculate the average of 7081 and 8890

Answers

i am pretty sure it is 7985.5

The average of 7081 and 8890, is 7985.5.

Calculating the Average

To calculate the average of two numbers, you add the numbers together and then divide the sum by 2.

Here are the steps:

Add the numbers: 7081 + 8890Sum: 15971Divide the sum by 2: 15971 / 2Result: 7985.5

Therefore, the average of 7081 and 8890 is 7985.5.

I need some help please.

Answers

answer is (0,-8) see picture:

A commuter has $245 in his commuter savings Account. This account changes by -$15 each week he buys a ticket.

A- if the account changes by -$240, for how many weeks of tickets did the commuter buy?

B- if the commuter wants to buy 20 weeks of tickets, how much must he add to his accoumt?

Answers

the account changes by -15 each week he buys a ticket....that means each ticket costs 15 bucks.

if the account changes by -240......240/15 = 16....so he bought 16 weeks of tickets

if he wants to buy 20 weeks....and the tickets cost 15 bucks...he would have to add (20 * 15) = 300 bucks.....thats if he doesn't have any in his account

The graph below shows a system of equations:

Draw a line labeled y equals 2x minus 5 by joining the ordered pairs 0, negative 5 and 4, 3. Draw a line labeled y equals negative x minus 2 by joining the ordered pairs negative 3,1 and 3, negative 5

The x-coordinate of the solution to the system of equations is __________.

Answers

Answer is (1, -3) i think ?

The x-coordinate of the solution to the system of equations is 1 unit.

What is a system of equations?

"A 'system' of equations is a set or collection of equations that you deal with all together at once. Linear equations (ones that graph as straight lines) are simpler than non-linear equations, and the simplest linear system is one with two equations and two variables."

"A solution for a single equation is any point that lies on the line for that equation. A solution for a system of equations is any point that lies on each line in the system."

Since, the given equation are

[tex]y = -x - 2[/tex] ----------------------- eq 1

and [tex]y = 2x - 5[/tex]  -------------------eq 2

now solving them,

subtracting eq 2 from eq 1

we get,

3x = 3

x = 1  and y = -3

Hence, the x-coordinate of the solution to the system of equations is 1 and y coordinate is -3.

To know more about system of equation here

https://brainly.com/question/12895249

#SPJ2

x-1=5x+3x-8
help this confused child

Answers

x-1= 5x+3x-8

Combine like terms
x-1= 8x-8

Our goal is to isolate x by cancelling out other numbers.
Subtract x from both sides
x-1-x= 8x-x-8
-1= 7x-8

Add 8 to both sides
7=7x

Divide both sides by 7
1=x

Final answer: x=1

Please Help...................

Answers

When you are multiplying numbers with exponents, you always add them.
(5^4) * (5^8)
5^(4+8)
5^12

Answer is 
A. 5^12
its going to be the first choice cause u have to add the exponet

answer 5 of the power of 12 or 5 exponet 12

Line CD passes through points (0, 2) and (4, 6). Which equation represents line CD?

y = 2x – 2
y = 2x + 2
y = x + 2
y = x – 2

Answers

(0,2)(4,6)
slope = (6 - 2) / (4 - 0) = 4/4 = 1

y = mx + b
slope(m) = 1
use either of ur points (0,2)...x = 0 and y = 2
sub and find b, the y int
2 = 1(0) + b
2 = b

ur equation is : y = x + 2 <==

Answer:

The correct option is 3.

Step-by-step explanation:

If a line passing through two points then the equation of line is

[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]

It is given that CD passes through points (0, 2) and (4, 6), so the equation of line is

[tex]y-2=\frac{6-2}{4-0}(x-0)[/tex]

[tex]y-2=\frac{4}{4}(x)[/tex]

[tex]y-2=x[/tex]

Add 2 on both the sides.

[tex]y=x+2[/tex]

The equation of line CD is y=x+2. Therefore the correct option is 3.

Solve the inequality 9(x - 3) < 4(x + 10).
x < 13/5
x > 13/5
x < 67/5
x > 67/5

Answers

9x - 27 < 4x + 40

-> 5x < 67

-> x < 67/5
the third one is the answer that x<67/5 

The Game Room Of The youth center needs carpet . Sweat T found that the room Measures 12 Inches by 8 inches on the blueprint of The Scale of The Blueprint is 1 inch To 3 feet , what is the actual area of the game room

Answers

the scale is 1 inch to 3 ft

and if 1 inch = 3 ft, then 12 inches = (12 *3) = 36 ft
and 8 inches = (8 * 3) = 24 ft

A = L * W
A = 36 * 24
A = 864 square ft <==

A wooden plank of length x is cut into 8 sections such that each section is at most 2 1/2 meters long. What is the length of the entire plank in meters?

Answers

5/2 * 8 = 40/2 = 20

x < = 20 meters ..ur answer

John and Jim painted a
fence John painted 1/4 of the fence and Jim painted 5/12 of the fence how much of the offense did they paint total

Answers

1/4+5/12=3/12+5/12=8/12=4/6=2/3

they painted 2/3 of the fence

the nutritional chart on the side of a box of cereal states that there are 93 calories in a 3/4 cup serving how many calories are in 5 cups of cereal

Answers

5 / 3/4 = 5/1 * 4/3 = 20/3 = 6 2/3


6 2/3 * 93 = 20/3 * 93/1 = 1860/3 = 620 calories

93/.75 = x/5
Cross multiply
.75x = 5*93
.75x = 465
Divide both sides by .75
x = 620 calories

Find the percent of discount. Round to the nearest tenth. original price $24,365; selling price $16,820

Answers

24365x = 16820
x = 16820/24365
x(rounded to the nearest tenth) = 0.70

Answer:

The percentage of discount is 31.0 % ( approx )

Step-by-step explanation:

Given,

The original price = $ 24,365

Selling price = $ 16,820

Thus,

[tex]\text{The percentage of discount}=\frac{\text{Original-Selling price}}{\text{Original price}}\times 100[/tex]

[tex]=\frac{24365-16820}{24365}\times 100[/tex]

[tex]==\frac{7545}{24365}\times 100[/tex]

[tex]=\frac{754500}{24365}[/tex]

[tex]=30.9665503796\%[/tex]

[tex]\approx 31.0\%[/tex]

I really need help! come ASAP!!!

A sporting goods store buys a basketball for $15.00 and then adds a 75% markup to the price. How much will the basketball sell for in the store?

Answers

100 minus 75 would be 25%
Turn 25% into a decimal and you would get .25
Then multiply that by 15 and you would get $3.75

$15.00 minus $3.75 you would get $11.25

The basketball would cost $11.25.

Hope this helps!

Question 4 (Fill-In-The-Blank Worth 4 points)

(05.01)The new club sticker is in the shape of a triangle. It has a height of 16 inches and a base of 14 inches. The area of the club sticker is ____ square inches.

Triangle with height of 16 inches and base of 14 inches.

Answers

- The area of the club stickers is 112 square inches.

- We know this because...
1. The calculations of a triangle is... 1/2 x b(h)

2. So first, lets calculate the b(h) first, which is 16 x 14 = 224 square inches.
  - This isn't the correct answer because it is the area of a rectangle.

3. Second, lets calculate 1/2 x 224 = 112 square inches.
  - We did this calculation because we are talking about a triangle.

- So, the total square inches of the club sticker is 112 square inches.

Hope this helps! :)

Hello,

The correct answer is 112 Square Inches.

Hope this helps!!!! Happy Holidays!!!! (:

What is 23 percent of 134?

Answers

23% of 134....turn percent to decimal...." of " means multiply

0.23(134) = 30.82 <==
The percent is 30.82

Part A: A graph passes through the points (0, 4), (1, 8), and (2, 10). Does this graph represent a linear function or a non-linear function? Explain your answer in words.

Part B: Write one example of a linear function and one example of a non-linear function. (Use x and y as the variables)

Answers

Part A: It is a non-linear function because it doesn't continue at a constant rate. The last y value increased by 2 instead of 4 like the previous coordinates. There's no consistency if that makes sense.

Part B: linear- (1,2) (2,4), (3,6) Notice how the x increases by the same amount (1) and the y increases by the same amount (2) 
non-linear- (2,4) (5,10) (7,11) The x and y values are increasing by completely different amounts in this one.

Answer:

The first guy is correct.

Step-by-step explanation:

How can x + 3 = −2x + 5 be set up as a system of equations

Answers

I also think that it's already a system of equation but you could simplify it into 3x=2 or 1x=1.5
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