1. What is the solution for 2x-5=7

O x = 6
O x = -6
X = 12
O x = 9

Answers

Answer 1

Given, equation in the question which we have to solve is

[tex]2x - 5 = 7[/tex]

Here, we need to find x. So, Let's isolate x on one side of the equation. It is present in the left hand side. Add 5 to both sides,

[tex]2x - 5 + 5 = 7 + 5[/tex]

[tex]2x = 12[/tex]

Divide 2 from both sides,

[tex] \frac{2x}{2} = \frac{12}{2} [/tex]

[tex]x = 6[/tex]

So, the correct option is A.

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Related Questions

The Unit Rate is when both units in a rate are equal to each other (ie. 5 cats : 5 dogs)
True
False

Answers

Answer:

False

Step-by-step explanation:

Unit Rate Definitions Unit rate is used to compare quantities in which the second quantity is one. Common examples of unit rate would include, miles per hour earnings per hour cost per gallon.

How much of something per 1 unit of something else. Examples: • 100 cars pass by in 2 hours. The unit rate is 50 cars per hour.

Answer:

False

Step-by-step explanation:

it could be 5 cats : 6 dogs.

Unit rates can be unequal too.

SOLVE ATTACHMENT PLEASE!!!!!!!

Answers

Answer:

[tex]B=\frac{h+D^{2}5g}{D^{2} }[/tex]

Step-by-step explanation:

h = D²(B - 5g)

h = D²B - D²5g

h + D²5g = D²B

B = (h + D²5g)/D²

X- (-12)=25

( FIND X)

Answers

Step-by-step explanation:

X- (-12)=25

X+12=25

X=25-12

X=13

please mark as brainliest

the mean of 49 51 49 51 51 49 please help

Answers

Answer:

the mean is 50

Step-by-step explanation:

add up all the numbers which equals 300 then divide but the amount of numbers in this is 6 so that gives you 50

Answer:

50 is the mean

Step-by-step explanation:

When it ask for mean it ask you to add up all the numbers and divide by how many numbers their are. Their 6 numbers added together to make the total of 300.

49+51+49+51+51+49 = 300

300 / 6 = 50

Plz help me with this

Answers

Answer:

BALLZ

Step-by-step explanation:

T3ST1CALZ

What is the value of the expression?
-16+ 12
-28
-4
4
28

Answers

The answer to this question would be twenty eight

Answer:

-4 is the corect answer because when your adding integers depending if your number is negative or positive your sum will either go right or left up or down

Step-by-step explanation:

as shown with the attached file

what is 4(3x+5) i need help

Answers

Answer:

As an equation its 12x+20

Step-by-step explanation:

You would distribute 4(3x+5) by multiplying 4 by 3x and 4 by 5. That gets you 12x+20

Identify the range of the function shown in this graph

Answers

Answer:

[tex]0 \leqslant y \leqslant 5[/tex]

HELP PLS WILL GIVE BRAINLISTE

Answers

Answer: D and J

Step-by-step explanation:

Subtract 17.56 from both sides and divide by 5 to get the answer of D. 2.52

3x + 6 = 9

subtract 6 from both sides

3x = 3

x = 1

Pleaseeee help !! I made this a 50 point question

Answers

The angle "b" and the angle "d" are both the same angle measure. In other words, they are opposite angles that share the black dot in the middle. Angle "a" and angle "c" are both opposite angles which make them the same. They can also be called congruent angles. Even if they are facing a different direction, they are the same.

Therefore, the answer is 130 degrees

Best of Luck!

answer:

130 degrees

explanation:

the angles "a" & "c" are opposite (also called congruent) so they are the same.

Name the subset(s) of real numbers to which each number belongs. Then order
the numbers from least to greatest.
9
10.-11.16

Answers

Answer:9,10,11,16

Step-by-step explanation:

9 is the least then 10 then 11 16 is the greatest

2d + 3 ≤ –11 or 3d – 9 > 15?

Answers

Answer:  d≤-7 and d>8

Step-by-step explanation:

3d - 9 >15 answer is d>8 and 2d + 3 ≤ -11 is d≤-7

Can someone please help? This is due today, and I have NO CLUE

Answers

Step-by-step explanation:

Multiplication......

Marco walked 27/100 kilometer to the park. then he walked 3/10 kilometer to the library. What fraction of a kilometer did he walk in all?

Answers

Answer:57/100

Step-by-step explanation:

First, convert 3/10 into hundreths to get a denominator equal to the other:

3/10 km = 30/100km

Add the numerators: 27+30=57

Place numerator over common denominator: 57/100

h(-1) means that x is...

Answers

Answer:

-1

Step-by-step explanation:

h(x) is another way to say y. the "x" inside h(x) IS the x value

Help me plz I don't get it !!!!!!!!

Answers

Answer: B.

It grows 3 inches per week

Answer:

B. 3

Step-by-step explanation:

The constant of proportionality is 3 because every week, the tree grows 3 more inches at a constant rate. The increase amount doesn't change. It's constantly growing by 3 inches.

I hope this helps!

Yolanda is buying supplies for school. She buys n packages of pencils at 1.40 per package and m pads of paper at 1.20 each. What does the term in the expression 1.4n + 1.2m represent? What does the entire expression represent?

Answers

The entire expression represents how many packages of pencils and pads of paper bought.

K = 4a + 9ab solve for a

Answers

Answer:

[tex]a=\frac{K}{4+9b}[/tex]

Step-by-step explanation:

[tex]K=4a+9ab[/tex]

Switch sides:

[tex]4a+9ab=K[/tex]

Factor out a:

[tex]a\left(4+9b\right)=K[/tex]

Divide both sides by: [tex](4+9b)[/tex]

[tex]\frac{a\left(4+9b\right)}{4+9b}=\frac{K}{4+9b}[/tex]

[tex]a=\frac{K}{4+9b}[/tex]

-5x - 2y = 13
-4x + y = 0
Solve by substation

Answers

Answer:

(x,y)=(-1,-4)

Step-by-step explanation:

-4x + y = 0

+4x         +4x

y=4x

-5x - 2y = 13

+5x          +5x

-2y = 5x+13

-2(4x) = 5x+13

-8x=5x+13

-5x -5x

-13x/-13=13/-13

x=-1

Thus:

y=4x

y=4(-1)

y=-4

Help lol as soon as possible

Answers

multiply both sides
8x-96=3x+24
move the terms
8x-3x=24+96
collect like terms
5x=120
solution:
x=24

The ceiling in Mitchell’s bedroom measures 12 feet by 10 feet 11 inches. What’s the total area of the ceiling in square inches?

Answers

Answer: 12x10x11 I think so 1320

Step-by-step explanation:

The total area of the ceiling is 18864 inches^2

Which graph correctly shows the solution of the compound inequality 3x 2 -12 and 8x < 16?

Answers

Answer:

8x < 16 it shows the solution of the compound inequality

The area common to both the graph inequalities represent the solution set.

What is inequality? Differentiate between equation and expression?  inequality : An inequality is used to make unequal comparisons between two expressions or numbers.expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.equation : A mathematical equation is used to equate two expressions.

Given is the compound inequality as -

3x > -12

and

8x < 16

Refer to the graph of the inequalities attached. The area common to both the graphs represent the solution set.

Therefore, the area common to both the graph inequalities represent the solution set.

To solve more questions on inequality, visit the link below -

brainly.com/question/14610360

#SPJ2

A submarine was situated 800 feet below sea level. If it ascends 250 feet, what is its new position?**

Answers

Answer:
The new position of submarine is 550 feet below the sea level.
Given:
A submarine is located at 800 feet below sea level (i.e) if x is considered as the sea level, then it is located at x - 800. The submarine ascends 250 feet, (i.e) its new position is increased by 250 feet from its previous position, then its new position becomes 800 - 250 = 550 feet. Hence the new position of submarine is located at 550 feet below sea level, x.

Answer:

650

Step-by-step explanation:

800-250=650

It's like taking a negative number and adding a positive number to it

7) Line Segment PR is 5 ft. Find the length of Line Segment PQ and QR. (Hint: use the segment addition postulate.)

Answers

Answer:

PQ = 1 ft

QR = 4 ft

Step-by-step explanation:

From the picture attached,

Segment PR has been divided into two parts by a point Q.

Length of segment PR = 5 feet

Length of segment PQ = (15x - 2) ft

Length of segment QR = (5x + 3) ft

Since, PR = PQ + QR

5 = (15x - 2) + (5x + 3)

5 = 20x + 1

20x = 4

x = [tex]\frac{4}{20}[/tex]

x = 0.2

PQ = 15x - 2

     = 15(0.2) - 2

     = 3 - 2

     = 1 ft

QR = 5x + 3

     = 5(0.2) + 3

     = 1 + 3

     = 4 ft

-7/2 x 1/6 (make it a fraction) (simplified)

Answers

Answer:

The answer would be -7/12

Step-by-step explanation:

What you would do is

a/b×c/d=ac/bd

this would be the formula

so what you would do is -7 (which is the numerator X the other numerator which equals -7 times 1= -7

then you would do 2 X6= which is 12 so the answer would be 7/12 because you can't simplify it anymore

what is the reflection of (x, -y) across the y-axis.

Answers

Reflection across the y-axis makes the x-coordinate opposite.
(x, -y) —> (-x, -y)

(HIGH POINTS) help urgently please!!!!

Answers

Answer:

its blurry the photo

Step-by-step explanation:

Answer:

67/24

Step-by-step explanation:

Remember PEMDAS

First you solve the parenthesis which is 11/12.

Then do exponents 2^4=16

For division do left to right so 2/3 ÷ 16 = 1/24

and the other division is 11/12 ÷ 1/3 = 11/4

Add the two 1/24 + 11/4 = 67/24

67/24 is the answer

Hope this helps

HELP PLEASE! IM STUCK!

Answers

Answer:

D

Step-by-step explanation:

What is 4 less than three sevenths of y

Answers

Answer:

[tex]\frac{3}{7}y - 4[/tex]

Step-by-step explanation:

Let's start with the part "three sevenths of y". In this statement, "of" means multiply or times. So, let's apply that. It would now be three sevenths times y. Three sevenths times y looks like this: 3/7y"4 less than" means subtraction because less than means subtractions. So our first part is 3/7y. Now let's add less 4 less than: 3/7y - 4.

I hope this helps!

Algebra 1- 10 pts
Solve for t.

−4t≤48

Enter your answer as an inequality

Answers

The answer for this problem is t ≥ - 12
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