Solve 2x-5 = 7 I will mark as brainliests ​

Answers

Answer 1

Step-by-step explanation:

first method

add 5 from both side

2x -5 +5 = 7+5

2x= 12

X = 2

12

divide 2 from both side

2. 12

2. 2

X = 6

second method

2x-5=7

2x = 5+7

2x=12

X=2/12

X =6

:.


Related Questions

Consider function fand function g.
() = In
g(x) = -5 In
How does the graph of function g compare with the graph of function ?
Unlike the graph of function f, the graph of function ghas a y-intercept.
The graph of function g is the graph of function fvertically stretched by a factor of 5.
Unlike the graph of function f, the graph of function g decreases as x increases.
The graphs of both functions have a vertical asymptote of r = 0.
Unlike the graph of function f, the graph of function g has a domain of {+1 -5 < x < 0}
Reset
Next

Answers

Answer:

I believe it is the first third and fourth options, I am not entirely sure for I mostly guessed on them, but they make the most sense when looking at the graph.

Step-by-step explanation:

It can be deduced that the graph of function f and g compare as:

Unlike the graph of function f, the graph of function g decreases as x increases.The graph of both functions have a vertical asymptote of x = 0.

What is a function?

A function in mathematics simply means the relation between a set of inputs and a set of permissible outputs.

In this case, the graph of both functions have a vertical asymptote of x = 0. This is because the divisor equals to zero for a value of x.

Learn more about graphs on:

https://brainly.com/question/25020119

After the movie 99 out of 130 people surveyed.
What is the experimental probability that the next person surveyed will say he or she liked the movie?

Answers

Answer:

19 percent

Step-by-step explanation:

yw

Using either substitution or elimination method, solve the system of equations that consists of 8x+y= -16 and -3x+y=-5 Your solution will be a coordinate of integers. ​

Answers

Answer:

x= -1

y= -8

Step-by-step explanation:

Solve for y in 8x + y = -16

y = -16 - 8x

Substitute y = -16 - 8x into -3x + y = -5

-11x - 16 = -5

Solve for x in -11x - 16 = -5

x = -1

Substitute x = -1 into y = -16 - 8x

y = -8

Therefore,

x= -1

y= -8

Answer:

(-1, -8)

Step-by-step explanation:

SUBSTITUTION METHOD:

8x + y = -16-3x + y = -5

Solve for y in the first equation by subtracting 8x from both sides.

y = -16 - 8x

Substitute this value for y into the second equation.

-3x + (-16 - 8x) = -5

Remove the parentheses and simplify.

-3x - 16 - 8x = -5

Combine like terms.

-11x - 16 = -5

Add 16 both sides of the equation.

-11x = 11

Divide both sides of the equation by -11.

x = -1

Substitute this value for x into either equation (I'm using the first equation).

8(-1) + y = -16

Multiply and simplify.

-8 + y = -16

Add 8 to both sides of the equation.

y = -8

ELIMINATION METHOD:

8x + y = -16-3x + y = -5  

Subtract the second equation from the first equation to "cancel" the y-variable.

11x = -11

Divide both sides of the equation by 11.

x = -1

Substitute this value for x into either equation (I'm using the second equation).

-3(-1) + y = -5

Multiply and simplify.

3 + y = -5

Subtract 3 from both sides of the equation.

y = -8

The solution to this system of equations is (-1, -8).

Find the domain and range of the function graphed below.
5+
3
2
1
1.
-5 -4 -3 -2 -1
41
+
1 2 3 4 5
-2
-3
-4
-5+
O

Answers

Domain is [-1,3)

Range is (-5, 4]

A () bracket means the value IS NOT included, a [] bracket means the value IS included in interval notation.

On a cruise ship there are two options for an Internet connection. The first option is a fee of $5 plus an additional $0.25 per minute. The second option cost $50 for an unlimited number of minutes. For how many minutes, m, is the first option cheaper than the second option? BRAINLIEST!!!

Answers

Answer:

m=180

Step-by-step explanation:

5+0.25m=50

-5. -5

0.25m=45

divide both terms by 0.25

m=180

with the first option you can get 180minuts or 3hours for the equivalent of the $50 option.

hope this helps :)

Which inequality is represented by the number line diagram shown below?

Answers

Answer:

I think the second one

Step-by-step explanation:

Answer:

the first

one

Step-by-step explanation:

write 47% as a decimal

Answers

Answer:

0.47

Step-by-step explanation:

47% is the same as 0.47.

Hope it helps!

Can y’all please help me!

Answers

Answer:

B)

Step-by-step explanation:

Answer: its B.... YWWW!!!

Step-by-step explanation:

Given that €1 = 0.72

How much is €410 in £?

Answers

Answer:

295.20

Step-by-step explanation:

410*0.72

Answer:

295.2

Step-by-step explanation:

X = 5(84/100) + 4(10/100) +3(4/100) + 2(1/100) + 1(1/10)

Answers

the correct answer is,

[tex]x = \frac{121}{25} [/tex]

if you want me to solve without the parentheses then the answer would be,

[tex]x = \frac{1609}{100} [/tex]

Answer:

What they said

Step-by-step explanation:

Which equation represents a line which is perpendicular to the line x – 2y = -14?

Answers

Answer:

any equation that have the slope of -2

A line which is perpendicular to the line x – 2y = -14 will have a slope of -2

What is a slope?

The slope of a line is a measure of its steepness.

Given an equation of a line  x – 2y = -14

We know that, the slope of a line perpendicular to another line will have a slope of its negative reciprocal.

Therefore, slope of the line perpendicular to the line x – 2y = -14  will be -2

Hence, equation of the line perpendicular to the line x – 2y = -14 will have a slope of -2

For more references on slope, click;

https://brainly.com/question/3605446

#SPJ2

given a population mean of 27.1 with a standard deviation of 8.4 and a sample size of 10, answer these questions.
part A: what is the standard deviation of the sampling distribution of x hat? show your work.
PartB: what does the sample size need to be if you want the standard deviation of the sampling distribution of x hat to be 2.8? show your work.

Answers

Answer:

a) 2.66

b) 9

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

part A: what is the standard deviation of the sampling distribution of x hat? show your work.

We have that [tex]\sigma = 8.4, n = 10[/tex]. So

[tex]s = \frac{\sigma}{\sqrt{n}} = \frac{8.4}{\sqrt{10}} = 2.66[/tex]

PartB: what does the sample size need to be if you want the standard deviation of the sampling distribution of x hat to be 2.8?

This is n when [tex]s = 2.8[/tex]. So

[tex]s = \frac{\sigma}{\sqrt{n}}[/tex]

[tex]2.8 = \frac{8.4}{\sqrt{n}}[/tex]

[tex]2.8\sqrt{n} = 8.4[/tex]

[tex]\sqrt{n} = \frac{8.4}{2.8}[/tex]

[tex]\sqrt{n} = 3[/tex]

[tex](\sqrt{n})^2 = 3^2[/tex]

[tex]n = 9[/tex]

16
20
25
16
20
50
5. Eli's school collected 140 canned foods last month, which represents 25% of their goal.
Part A: What is the school's goal for the number of canned foods they hope to collect?
anned

Answers

Answer:

560

Step-by-step explanation:

I'm kinda confused on whats being asked i went with just question number 5

Please help me

-(8x)^2
-x/4=3
-8x-5=35
-4(z+7)=36

Answers

1. not sure how to work out without an = ?
2. x = -12
3. x = -5
4. z = -16

what if u round 0.5 to the nearset hundredth

Answers

Answer:

0.50 (still the same)

Step-by-step explanation:

ANSWER TO NUMBER 3 FIRST PERSON GETS BRAINLIEST!!

Answers

The correct answer would be B.)

Multiplying -5x-7= 35

Multiplying two negative numbers gives you a positive

Which of the following coordinates is in the solution set of this system?

A. (0,0)
B. (-5,3)
C. (8,-8)
D. (1,-4)
E. (2,-5)

Answers

Answer:

B.

Step-by-step explanation:

Answer:

b ceguro

pa heart din plss

f(x) = x^5 +x^3+2x^2-12x +8

Answers

Answer:

35 is the answer to this problem

Step-by-step explanation:


[tex] \sqrt{81 \times 8} [/tex]

Answers

Answer:

Step-by-step explanation:

81 = 9 * 9 = 3 * 3 * 3 *3

8 = 2 * 2 * 2 *2

[tex]\sqrt{81 * 8 } = \sqrt{3*3*3*3*2*2*2}\\\\=3 * 3 * 2 \sqrt{2}\\\\= 18\sqrt{2}[/tex]

The points (11, 13) and (7, 13) fall on a particular line. What is its equation in slope-intercept form?

Answers

Answer:

slope -intercept form y=mx+c

The equation of the straight line

                                 y = 0x +13

Step-by-step explanation:

Step(i):-

Given that the points

           (11 ,13) and (7,13)

The slope of the line

    [tex]m = \frac{y_{2}-y_{1} }{x_{2} -x_{1} } = \frac{13-13}{7-11} = \frac{0}{-4} =0[/tex]

Step(ii):-

Equation of the straight line passing through the point (11,13) and slope m=0

y - y₁ = m( x-x₁)

y - 13 =0(x-11)

y-13 =0

y =13

slope -intercept form y=mx+c

y = 0x +13

Which two expressions are equivalent?

Answers

Answer:

option 3

Step-by-step explanation:

12 - (y*2) = 12 - (2*y)    Commutative property

2*y = y*2

1. To determine the most common injury cared for in an emergency room, a reporter goes to the same hospital every
afternoon for one month during the summer and observes people entering the emergency room. She concludes that
second degree sunburn is the most common injury.
Unbiased and Biased Samples

Answers

Answer:

Unbiased

Step-by-step explanation:

Your answer would be unbiased because the reporter is going in the same hospital every afternoon for one month which means that the reporter is using the Systematic sample and systematic is an unbiased sample

Which of the linear equations below is derived from the
following table of values?

HELP ME

Answers

Answer:

A. y=x+4

Step-by-step explanation:

I used Desmos to graph all the information and the black line (which is A) goes through all the points. See picture

Brooke bought 6 bags of powdered sugar. She got a total of 4 2/3 cups of sugar. How many cups of sugar were in each bag

Answers

Answer:

6.5 bags of sugar in each bag

Step-by-step explanation:

I need help with math

Answers

Answer:

6:3

Step-by-step explanation:

lan often takes his dog to the park. He estimates that 30% of the other dogs
he sees are retrievers, 20% are terriers, and 20% are German shepherds. He
designs a simulation.
Let 0, 1, and 2 represent retrievers.
Let 3 and 4 represent terriers.
Let 5 and 6 represent German shepherds.
Let 7, 8, and 9 represent other dogs.
The table shows the simulation results.

Answers

Answer:

0.60 if it is shepherd!

Step-by-step explanation:

The first platform of the Eiffel Tower is 2,280 inches above the ground. The second platform is 376 feet above the ground. How many yards separate the first platform from the second platform?​

Answers

Answer:

62.0496 yards separate the first platform from the second platform

Step-by-step explanation:

We have to make the conversion of both units to yards.

Each feet has 12 inches.

Each inch is 0.0278 yards.

The first platform of the Eiffel Tower is 2,280 inches above the ground.

So

2280*0.0278 = 63.384 yards above the ground.

The second platform is 376 feet above the ground.

So

376*12*0.0278 = 125.4336 yards above the ground

How many yards separate the first platform from the second platform?​

125.4336 - 63.384 = 62.0496

62.0496 yards separate the first platform from the second platform

60 in scientific notation

Answers

6 x 10 to the first power

Answer:

I think the answer would be 6.0x10¹

If 60 was in scientific notation it would look like 6.0 because there is only one zero and we would need to move the decimal one place to the right. So we multiply 10¹ so we can move that decimal to the right to make 60.

Serena’s average speed during her training run was 8 kilometers per hour over the 2 hours that she ran. What was the total distance that she ran?

Use the formula d = rt, where d represents the distance, r represents the rate, and t represents the time

Answers

Answer:

16 kilometres

Step-by-step explanation:

d is 2 hours and because it's times 2 RT would be 16

Answer:

i, .... dont have a clue. :(

Step-by-step explanation:

sorry

Determine the degree of the polynomial

Answers

u have to divide then pray

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