What’s meaning of x in math

Answers

Answer 1

Answer:

variable

The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.

Step-by-step explanation:

Answer 2
The letter x is usually used in algebra to mean a value that is not yet know.it is called a variable or sometimes an unknown hopefully this helped u:)

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Answers

Answer:

3.5

Step-by-step explanation:

Answer:

0.35

( I see that's a lot of help* )

The answer is 0.35 because...

Each row is 10 and there is 3 rows full,

1 row is half full, so that equals 5, and then

you add up all of the numbers and you will get 35.

But, in this case, you need it to be a decimal so you just make it 0.35

Hope this helps! <3

help me asp and explain please

Answers

Okay so, to get C you add the ones inside the triangle together.

42+58=100 Then the last angle will be 80, because when you add the three inside the triangle, you should get 180

42+58+80=180

To get D, you have to subtract 180 and 58, because 58+d will be a straight angle.

180-58=121

To get B and A, you would also have another straight angle (c, b, and a)

180-80=100

I believe that B=A, so, with the remaining 100, both A and B equal 50.

50+50+80=180

Does this help??

Answer:

a° = 58°

b = 42°

c° = 80°

d° = 122°

Step-by-step explanation:

d° can be found because a straight line has an angle of 180°.

180° - 58° = 122°

Because the angles of a triangle add up to 180°, we can find c°

58° + 42° = 100°. 180° - 100° = 80°

You can find a° subtracting 180 and d°, which is 122. 180° - 122° = 58°

You can do the same thing for b°. 180° - 42° = 138°. 180° - 138° = 42°

You can check this because b° + c° + a° should equal 180°.

58° + 42° + 80° = 180°

I hope this helps :)

hElP plS anD tY :}

I will give brainliest if I can (only to the first person who answers)

Answers

Answer:

the shark can swim 45 mph and the scuba diver can only swim 20. What is the difference between the speeds of the shark, and the scuba diver?

Answer:

fbejfbe

give brainliest pls??

Step-by-step explanation:

Triangles ABC and DBC have the following characteristics:



BC is a side of both triangles

∠ACB and ∠DCB are right angles

AC ≅ DC

Which congruence theorem can be used to prove △ABC ≅ △DBC?

AAS
SSS
HL
SAS

Answers

I think it wil be SSS or HL theorem

10x - 4 = 16


What does x equal to?

Answers

Answer:

x = 2

Step-by-step explanation:

First isolate the variable:

10x - 4 = 16

      +4   +4

10x = 20

Then get x by itself:

10x = 20

x = 20/10

x = 10

Combine like terms.
-m + 4m - 5m - (-9)
o not use any spaces in your answe

Answers

I think it’s -3m +9
Because u add like terms and distribute the negative into the parenthesis

Answer:

9 - 2m

Step-by-step explanation:

-m + 4m - 5m - (-9)

-m + 4m = 3m

3m - 5m - (-9)

3m - 5m = - 2m

-2m - (-9)

-(-9) = 9

9 - 2m

Max has 3 textbooks and 2
notebooks in his backpack. The total
weight of his backpack and its
content is 10,5 pounds. Each
textbook weighs 2.5 pounds. Each
notebook weighs 0.25 pound. What
is the weight of Max's empty
backpack?

Answers

Answer:

2 pounds

Step-by-step explanation:

3 • 2.5= 7.5
2•.25=.5
7.5+.5=8
10.5-8=2.5
Max’s empty backpack weighs 2.5 pounds

What is the product of (−4)⋅(−4)⋅(−4)⋅y⋅y using exponents

Answers

Answer:

[tex](-4)^{3[/tex]*[tex]y^{2}[/tex]

This should be right.

2p + 3 = 5 - 6p
what is the value of p in the equation?

Answers

Answer:

p=1/4

Step-by-step explanation:

original: 2p+3=5-6p

move variable to one side: 2p+6p=5-3

combine like terms: 8p=2

answer :p=2/8

simplify answer (final answer): p=1/4

2p+3=5-6p

2p+6p+3=5

2p+6p=5-3

8p=5-3

8p=2

Answer: p=1/4

The track star runs 100m at a rate of 10.4m/s. How long did it take to run 100m?
0.1 m/s
9.65
1040m/s
0.1s

Answers

Answer:

Time, t = 9.615 secs.

Explanation:

Speed can be defined as distance covered per unit time. Speed is a scalar quantity and as such it has magnitude but no direction.

Mathematically, speed is given by the equation;

[tex]Speed = \frac{distance}{time}[/tex] ....equation 1

[tex]Time = \frac{distance}{speed}[/tex] .....equation 2

Given the following data;

Distance = 100m

Speed = 10.4m/s

Substituting into equation 2;

[tex]Time = \frac{100}{10.4}[/tex]

Time, t = 9.615 secs.

which expressions are equivalent to -56z+28?
choose 2 correct answers:
a: 1/2 x (28z + 14)
b: (-1.4z + 0.7) x 40
c: (14 -7z) x (-4)
d: (8z - 4) (-7)
e: -2(-28z -14)

Answers

Answer:

e

Step-by-step explanation:

Make sure all words are spelled correctly.

Try different keywords.

Try more general keywords.

Try fewer keywords

S =4LW + 2WH; S = 96, L= 7, W= 3.
H=

Help please

Answers

Answer:

H = 2

Step-by-step explanation:

Order of Operations: BPEMDAS

Step 1: Define

S = 4LW + 2WH

S = 96

L = 7

W = 3

Step 2: Substitute and Evaluate for H

96 = 4(7)(3) + 2(3)H

96 = 84 + 6H

12 = 6H

H = 2

Answer:

H = = 2 H W + 4 L W

Step-by-step explanation:

Substitute the given value into the function and evaluate.

S = 4 L W + 2 W H = = 2 H W + 4 L W

S = 96 = = 2 H W + 4 L W

L = 7 = = 2 H W + 4 L W

W = 3 = = 2 H W + 4 L W

H = = 2 H W + 4 L W

I hope this helps!

Please Mark Brainliest

Sorry If I Overcomplicated it!

A students wants to help her mother in their family store in displaying canned goods. Her mother instructed that the canned should be piled in triangular pile by starting 40 canned goods in the bottom row, 36 in the second row, 32 in the third row, and so on. If the pattern is consistent, how many canned goods will be there in the 7th row?

Answers

Answer: The number of canned goods in 7th row = 64.

Step-by-step explanation:

The given numbers of canned goods in every row( starting from first ) is represented as

40 , 36, 32, ...

There is a common difference between numbers(d)= 4

∴ Its is an Arithmetic progression.

First term (a) = 40

nth term in A.P. : [tex]a(n)= a+(n-1)d[/tex]

7th term in this A.P. = 40+(7-1)(4)=40+(6)(4)=40+24=64

So, the number of canned goods in 7th row = 64.

3.5−2.46=1.16
Describe Maysa's error. Explain how you would use a model or place-value concepts to help Maysa build understanding. Give the correct answer in your explanation.

Answers

The correct answer for the given subtraction is:

3.5 - 2.46 = 1.04

How to solve the subtraction?

Here we want to find the subtraction between two numbers in decimal form:

3.5 - 2.46 = 1.16

Now, this is clearly wrong, as 0.46 is smaller than 0.5, so the decimals after the decimal point are incorrect, now let's solve it again.

First, we can rewrite these two numbers as:

3.5 = 3 + 0.5

2.46 = 2 + 0.46

Then the subtraction can be rewritten as:

3.5  - 2.46

(3 + 0.5) - (2 + 0.46)

Now we group like terms:

(3 - 2) + (0.5 - 0.46)

1 + (0.50 - 0.46)

1 + (0.04)

Now we group that, so we get:

1 + (0.04) = 1.04

This is the correct answer to the given subtraction.

If you want to learn more about subtractions:

https://brainly.com/question/25421984

#SPJ1

2 COLLUM PROOFS 1 question

Answers

Answer:

1. <AOB and <XOZ are vert. <'s           1. Given

   m<AOB = 80     m<XOZ = 6x+5

2. m<AOB = m<XOZ                            2. Vertical <'s are congruent

3. 80 = 6x+5                                       3. Substitution

4. 75 = 6x                                              4. Subtraction Property of equality

5. 12.5 = x                                              5. Division Property of equality    

Step-by-step explanation:

how many loonies are in 1 quarter

Answers

there are 25 loonies in 1 quarter

25 loonies i think but im not so sure

An is a mathematical statement that shows two expressions are equal using an equal sign.

Answers

No! Because a mathematical statement is actually a statement that is either true or false not a statement that shows two expressions are equal using an equal sign!

Answer:

fix the awser

Step-by-step explanation:

Answer please. For money.

Answers

x = 21.75 (third option)

lol i accidentally added a comment sorry

Help ASAP ‼️If m∠A=5x-12 m∠B=2x+18 ∠A and ∠C are supplementary and ∠B and ∠C are supplementary, find x.

Answers

Hope this helps ! Work and everything is shown

pleaseee help me solve this ​

Answers

hello! here is your answer

Answer:

1) ∠2 ≅ ∠7

⇒ they are corresponding angles

2) ∠5 ≅ ∠9

⇒ they are alternate interior angles

3) ∠4 ≅ ∠7

⇒ they are vertically opposite angles

4) if ∠3 ≅ ∠8, then p║q

⇒ they are corresponding angles

5) ∠3 ≅ ∠9

⇒ they are vertically opposite angles

6) m∠2 + m∠3 = 180

⇒ they are co-interior angles

7) ∠4 is vertical to ∠7

8) ∠2 and∠3 are same side interior angles

9) ∠5 corresponds to ∠8

10) one alternate exterior pair is ∠1 and ∠8

hope it helps you!!

what is the measure of <4?

Answers

Answer:

i not sure but  i think its 125

Step-by-step explanation

60% sure is 125

solve the equation. Enter your answer in the box.

Answers

x = 3..................................

Fiften is 30 percent of what number?

Answers

Answer:

50

hope it helps

Step-by-step explanation:

Answer:

50

Step-by-step explanation:

The way you solve this is by creating an inequality of

30          15

----     =   ----

100          x

So you cross multiply which would give you 30x = 1500, then you divide by 30 on both sides leaving you with 50. If you want to check it, you can then multiply 50 by .30 which would give you 15.

how do i solve for x

Answers

Answer:division if you just use the derivative

Step-by-step explanation:

What is the value of 5/z when z=2

Answers

z=
2
−6−
56



=−3−
14

=−6.742
Z = 2

5/(2) = 2.5 or 5/2

pls help now
A person is trying to find the height of a flagpole or AB. This person is 1.5 m tall and is
standing at DC. A mirror is placed at point M. This mirror is 6 m away from the person and 120 m away from the flagpole. Angles BMA and DMC are congruent. Find the height of the flagpole or BA.

Answers

Answer:

30 m. Your welcome

Step-by-step explanation:

Answer:

30m tall

Step-by-step explanation:

1.5/6 = x/120

Switch sides; cross multiply:

x/120 = 1.5/6

Multiply both sides by 10 and simplify:

x/12 = 5/2

Multiply both side by 12 and get 30m

Raj is deciding between two cell phone plans, A and B, which are both linear functions. The monthly charge for plan A according to the number of minutes used is shown in the table.

Monthly Charge for Plan A
Minutes used, x
Monthly charge ($), y
0
14.45
3
14.84
6
15.23
9
15.62
12
16.01

Plan B has the same monthly base charge as plan A, but it charges a different amount per minute used. If the total monthly charge for plan B is $22.10 when 45 minutes are used, what is the slope of the linear function that represents the cost of plan B?
0.13
0.17
0.39
0.45.

Answers

Answer:B is the correct answer (0.17)

Step-by-step explanation:

Ricky and James sold beef for a school fundraiser. Ricky sold 52 pounds and James sold 21 pounds. If their total combined sales were $1,168, how much does each pound of beef cost?

A. 16.00
B. 17.50
C. 13.50
D. 17.00

Answers

The answer would be A bc you add 52+21 which = 73 and then divide the $1,168 by 73 which = 16

Please help with this question, thank you.

Answers

Answer:

the conclusion is that AC and CB are equal distances because the midpoint is half of the line. hope this helps:)


An elephant can drink up to 6,400 fluid
ounces of water a day. How many gallons of
water can an elephant drink per day?

Answers

Answer:

50 gallons

Step-by-step explanation:

50 gallons! Hope this helps let
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