solve this mathematical equation 3x=5+7​

Answers

Answer 1

Answer:

x=4

Step-by-step explanation:

3x=5+7

7+5=12

12/3=4

x=4

Hope this helps!!

Answer 2

Answer:

x=4

Step-by-step explanation:

add like terms

3x =5+7

3x=12

divide both sides by 3

3x=12

3    3

x=4


Related Questions

A new car costs $34,000 and its value depreciates at 14% of its value each year. What is the decay factor for the value of this car? What will be the price of the car after 10 years?

Answers

The price of the car after 10 years is $7524.25 if the new car costs $34,000 and its value depreciates at 14% of its value each year.

What is an equation?

An equation is an expression that shows the relationship between two or more variables and numbers.

Let y represent the value of the car after x years. A new car costs $34,000 and its value depreciates at 14% of its value each year. Hence:

y = 34000(0.86)ˣ

After 10 years:

y = 34000(0.86)¹⁰ = 7524.25

The price of the car after 10 years is $7524.25 if the new car costs $34,000 and its value depreciates at 14% of its value each year.

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Find the Value of z! geometry!! pls help!!! thank you :)

Answers

[tex] \frac{z + 12}{5} = \frac{3z + 3}{4} [/tex]

[tex]4(z + 12) = 5(3z + 3)[/tex]

[tex]4z + 48 = 15z + 15[/tex]

[tex]48 - 15 = 15z - 4z[/tex]

[tex]33= 11z[/tex]

[tex]z = \frac{33}{11} \\ z = 3[/tex]

I Had 150 stickers. I gave 10 stickers to each of the 8 students in my class and kept the rest for myself. How many Stickers will I have

Answers

Answer:

70

Step-by-step explanation:

10tickets x 8students = 80tickets

150tickets-80tickets=70tickets

Triangles F H G and K J G share common point G. The lengths of sides H G and G J are congruent. Angles F H G and K J G are right angles.

Can you conclude that triangle GHF is congruent to triangle GJK? Explain.
yes, by ASA
yes, by AAS
yes, by AAA
not enough information given

Answers

Answer:

not enough information given

Step-by-step explanation:

as the rules say, we need at least 3 pieces of information :

2 angles and a side, or 3 angles (or there are other options like 2 sides and one angle or 3 sides).

but here we get 1 side and 1 angle. the shared point does not give us anything in that regard.

so, not enough information.

Determine which function has a greater initial value and explain how you know.
Function 1: y = 2()*
Function 2:
xy
03
16
2 12
3 24

Answers

Answer:

Function 2

Step-by-step explanation:

An initial value of a function, aka y-intercept, is obtained by using x=0 and evaluating the function at that point. Evaluating the two functions given:

Function1: y = 2x(1/3)^x|x=0 = 2*0*1=0

with the chart

xy

03

16

2 12

3 24

Function2 has value 3 for x=0

So, Function 2 has a greater initial value

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: Enter your answer and show all the steps that you use to solve this problem in the space provided.
What other information do you need in order to prove the triangles congruent using the SAS Postulate?

Answers

Answer: [tex]\angle BCA \cong \angle ACD[/tex]

Step-by-step explanation:

By the reflexive property, [tex]\overline{AC} \cong \overline{AC}[/tex]. So, we just need the pair of angles between these corresponding sides to be congruent.

Madison drew Triangle D E F. In her triangle, Measure of angle D is represented as x degrees. The measure of Angle E is half the measure of Angle D. The measure of Angle F is 2 degrees less than twice Measure of angle D. What is Measure of angle F?
36 degrees
56 degrees
102 degrees
147 degrees

Answers

Answer:

c)102 degrees

Step-by-step explanation:

0.3 y+\dfrac yz0.3y+
z
y

0, point, 3, y, plus, start fraction, y, divided by, z, end fraction when y=10y=10y, equals, 10 and z=5z=5

Answers

The required solution to the equation is [tex]0.3y+\frac{y}{z}[/tex] at y=10, z=5 is 5.

As we have the equation [tex]0.3y+\frac{y}{z}[/tex] and find solution At y =10 and z=5

What is equation?

The equation is the relationship between dependent and independent variables through some mathematical operators.

Now,
      putting the value of  y=10, z=5 in [tex]0.3y+\frac{y}{z}[/tex]
  ⇒[tex]0.3*10+\frac{10}{5}[/tex]
   =  5

Thus the required value of the equation at y=10 and z =5 is 3.

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what is the surface area of a cylinder with a radius of 9 and width of 2

Answers

Formula for area of circle:

A=radius squared multiplied by pi (3.14)

Formula for surface area:

A= area of circle multiplied by height

Explanation and Answer:

9x9= 81 (radius of circle squared)
81x3.14=254.34 radius of circle squared multiplied by pi)
254.34x508.68 (area of circle x height)

A food truck did a daily survey of customers to find their food preferences. the data is partially entered in the frequency table. complete the table to analyze the data and answer the questions:







part a: what percentage of the survey respondents do not like both hamburgers and burritos? (2 points)


part b: what is the marginal relative frequency of all customers that like hamburgers? (3 points)


part c: use the conditional relative frequencies to determine which data point has strongest association of its two factors. use complete sentences to explain your answer. (5 points)


will mark brainliest if correct answers

Answers

The percentage of the survey respondents that do not like both hamburgers and burritos is 16.09%.

How to compute the percentage?

The percentage of the survey respondents that do not like both hamburgers and burritos will be:

= 33/205 × 100

= 16.09%

The marginal relative frequency of all customers that like hamburgers will be:

= 134/205

= 0.65

The data point that has strongest association of its two factors will be:

Those who like hamburger and burrito = 39/134 = 0.29

Those who like hamburger and not burrito = 95/134 = 0.71

Those who like burrito but not hamburger = 38/71 = 0.53

Those who do not like hamburger or burrito = 33/71 = 0.47.

Therefore, the data point that has strongest association of its two factors will be those who like hamburgers but not burritos.

A food truck did a daily survey of customers to find their food preferences. The data is partially entered in the frequency table. Complete the table to analyze the data and answer the questions:

Likes hamburgers Does not like hamburgers Total

Likes burritos 38 77

Does not like burritos 95 128

Total 134 71

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Graph the exponential model
y = 3(6)^x Which point lies on the graph?

(-9 2)
(2, 9)
(- 1, - 18)
(1, 18)

Answers

Answer: (1, 18)

Step-by-step explanation:

Test each x, y pair.

Getting to the last one, plug in 1 for the x value.

y = 3 * (6 ^ x)

y = 3 * (6 ^ 1)

y = 3 * 6

y = 18

This matches with (1, 18) so it must lie on the graph.

2n + 1.6 = 17.6 what is the value of n?​

Answers

Answer:

n = 8

Step-by-step explanation:

2n + 1.6 = 17.6 what is the value of n?​

2n + 1.6 = 17.6

2n = 17.6 - 1.6

2n = 16

n = 16 : 2

n = 8

-----------------

check

2n + 1.6 = 17.6

2*8+1.6=17.6

16+1.6=17.6

17.6=17.6

the answer is good

n=8, here's the work on paper if that helps!

Solve x please explain

Answers

Answer:

x = 4

Step-by-step explanation:

co interior angles add up to 180.

this means that: 48 + 34x - 4 = 180

thus 48 + 34x = 184

therefore, 34x = 136

so, x = 4.

Angle Relationships

The two angles labeled in the given diagram are interior angles on the same side of the transversal. They can also be called interior supplementary angles.

These angles have a sum of 180 degrees.

Solving the Question

The two angles given have measures of 48 degrees and (34x-4) degrees.

They have a sum of 180 degrees.

Form an equation:

[tex]48+(34x-4)=180\\48+34x-4=180\\44+34x=180\\34x=180-44\\34x=136\\x=4[/tex]

Answer

[tex]x=4[/tex]

ease help me and thank you so so much u are so amazing!!

Answers

-4 Litre/minute

[tex] \frac{36 - 40}{2 - 1} = 4[/tex]

what is the side view ? the rest are right like i've tried loads of combinations but they're not right, please say what the shape is you know

Answers

Answer:

it will be a rectangle mostly...

The side view will look like a square, 2 unit wide and 2 units high.
From the side you cannot tell it is a sloping rectangle.

Using the following image, find QR given RS=6 and QS=7.
What is QR?

Answers

Answer:

1

Step-by-step explanation:

Knowing that the entire number line equals 7, and that the second line segment RS equals 6, we can subtract the two values to find QR.

[tex]7-6=1[/tex]

Therefore, QR equals 1.

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[tex]\quad \huge \quad \quad \boxed{ \tt \:Answer }[/tex]

[tex]\qquad \tt \rightarrow \:QR = 1 \:\: unit [/tex]

____________________________________

[tex] \large \tt Solution \: : [/tex]

[tex] \qquad \tt \rightarrow \: QR + RS = QS[/tex]

Let QR = x

[tex]\qquad \tt \rightarrow \: x + 6 = 7[/tex]

[tex]\qquad \tt \rightarrow \: x = 7 - 6[/tex]

[tex]\qquad \tt \rightarrow \: x = 1[/tex]

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

Find the area of each rhombus.
PLS HELP!! Geometry!!!!

Answers

Answer:

A) 384

B) 576

Step-by-step explanation:

the area of a rhombus is

pq/2

First Rhombus

we have p but to find q we can cut the triangle in half to form a right triangle, that allows us to use the Pythagorean theorem

20² = 12² + b²

400 - 144 = b²

b² = 256

b = 16

since the height (b) is half the rhombus, we double it to get q

p = 24

q = 32

a = [tex]\frac{24*32}{2}[/tex]

a = 384

Second Rhombus

Since rhombuses are parallelograms, we can use its area formula  (b)(h)

a = (24)(24)

a = 576

A rectangle has a length of 6x-5y+1. If the perimeter of the rectangle is 16x-4y-4, determine an expression for its width

Answers

Answer:

2x +3y -3

Step-by-step explanation:

The perimeter of a rectangle is the sum of the lengths of all its sides.

Perimeter of a rectangle= 2 length +2 width

16x -4y -4= 2(6x -5y +1) +2(width)

Expand:

16x -4y -4= 12x -10y +2 +2(width)

2(width)

= 16x -4y -4 -(12x -10y +2)

= 16x -4y -4 -12x +10y -2

= 4x +6y -6

2(width)= 2(2x +3y -3)

Divide both sides by 2:

width= 2x +3y -3

00
What is the volume of the following rectangular prism?
2
units
Volume=
27
5
units2
units

Answers

The volume of the rectangular prism is 27/2 square units

How to determine the volume?

The volume is calculated as:

Volume = Base area * Height

This gives

Volume = 27/5 * 5/2

Evaluate the product

Volume = 27/2

Hence, the volume of the rectangular prism is 27/2 square units

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Please Help Asap Please And Thank You!

Answers

Answer:

Rate of change: 4/3

Step-by-step explanation:

Number of sodas/Total cost

pick a number

24/18 = 4/3

Answer:

4/3

Step-by-step explanation:

Rate of change is also known as slope.

To find slope, you have to find the change in y divided by the change in x.

y2-y1 / x2-x1

The variable y in this situation is the number of sodas.

The variable x in this situation is the total cost.

28 - 24 / 21 - 18

= 4 / 3

The rate of change in this problem is 4/3.

Absolute value of -6.2 is _________.
1. 6.2
2. 6
3. 7
4. -6

Answers

SOLVING

[tex]\Large\maltese\underline{\textsf{A. What is Asked}}[/tex]

What is the absolute value of -6.2? It's _____________.

[tex]\Large\maltese\underline{\textsf{B. This problem has been solved!}}[/tex]

No matter what the number is, its absolute value is always positive.

The number -6.2 is not an exception, there's nothing special about that number. Its absolute value is also positive.

[tex]\cline{1-2}[/tex]

[tex]\bf{Result:}[/tex]

              [tex]\bf{=6.2}[/tex]

[tex]\LARGE\boxed{\bf{aesthetic \not1 \theta l}}[/tex]

The absolute value of -6.2 is 6.2 (option 1).

The absolute value of a number represents its distance from zero on the number line, regardless of its sign. For the value -6.2, the distance from zero is 6.2 units. Therefore, the correct answer is 1. 6.2. Option 1 accurately reflects that the absolute value of -6.2 is indeed 6.2.

The other options (2. 6, 3. 7, and 4. -6) do not accurately represent the absolute value of -6.2. The absolute value operation ensures that the result is always a positive value, showing how far a number is from zero. In this case, the absolute value of -6.2 is 6.2.

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The number line below is correctly represented by which of the following intervals?

Answers

The intervals that represent the number line are given as follows:

b. [tex](-\infty, -5] \cup [8, \infty)[/tex]

What intervals belong to the number line?

The first painted interval is of numbers to the left of x = -5(inclusive due to closed circle), hence:

[tex](-\infty, -5][/tex]

The second interval is of numbers to the right of x = 8, also inclusive, hence:

[tex][8, \infty)[/tex]

Hence the union is given by:

[tex](-\infty, -5] \cup [8, \infty)[/tex]

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Answer:

B

Step-by-step explanation:

mark me Brainliest pls

Please help, i can't figure this out. I'll give a brainliest, but i really need help with how to solve this.

Answers

The required linear equation is given by y=10x + 15

The data collected by Harvard Business School plots the linear relationship of business startup success vs. Time.

What is Statistic?

The statistic is the study of mathematics which deal with relations between comprehensive data.

As clearly, points represents on graph startup success vs Time
part of a straight line
so we take two points on graph at (1,25), (2,35)
now equation of line

 [tex]y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)[/tex]
= [tex]y-25=\frac{35-25}{2-1} (x-1)[/tex]
[tex]y=10x+15[/tex]

Thus, The required expression is given by y=10x + 15 which show the relation ship between startup success Vs time

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I don’t understand, please help.

Answers

#20 90. Complementary (because their angles together equal 90 degrees)
#21 A and supplementary (because together they equal 180 degrees)
#22 pt.1 45 pt. 2 135 and pt.3 45
#23 180
#24 90
#25 complementary angles (because together they make 90 degrees)

Explain how to decide when a normal distribution can be used to approximate a binomial distribution.

Answers

A normal distribution can be used to approximate a binomial distribution when n* p and n * q are greater than 5.

What is a normal distribution?

A probability distribution that is symmetric about the mean is the normal distribution, sometimes referred to as the Gaussian distribution. It demonstrates that data that are close to the mean occur more frequently than data that are far from the mean.

A probability bell curve is more properly described as the normal distribution.

The mean and standard deviation of a normal distribution are 0 and 1, respectively. It has a kurtosis of 3 and zero skew.

Not all symmetrical distributions are normal, but all normal distributions are symmetrical.

Natural occurrences frequently resemble the usual distribution.

However, most price distributions in finance are not exactly normal distributions.

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The solution to an absolute value inequality is shown on the graph below.
-5-4-3 -2 -1 0 1 2 3 4 5
What is another way to show the solution?
x> -3 or x < 2
{x|x <-3 orx <2}
[-3, 2]
O (-3, 2).

Answers

The solution to the absolute value inequality is (-3,2).

What is absolute value inequality ?

Absolute Value Inequality is the expression which contains absolute function as well as inequality signs .

The absolute value inequality is represented in the form of  a line

Interval of the function is  -3 to 2

As the intervals are represented by open circles, so  -3 and 2 are exclusive of the values of the inequality.

Therefore the another way to show the solution is

-3 < x < 2

or

(-3,2)

Therefore,  the solution to the absolute value inequality is (-3,2).

The complete question is attached with the answer.

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Solve the system of linear equations.

y=−16x+5
x+6y=30

Answers

x = 0 & y = 5

- Please see the attached picture for full sol^! :)

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FIND R, Interest problem

Answers

R, which is the rate is 20%.

What is simple interest?

Simple interest is the interest on a sum of money invested or borrowed for a specific period of time.

The sum invested is called the principal.

Analysis:

simple interest (I) = PRT/100 = 300

P = principal = 3000

R = rate = ?

T = 0.5 year

300 = 3000 x R x 0.5/100

R = 20%

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The general form of the equation of a circle is ax2 by2 cx dy e = 0, where a = b 0. if the circle has a radius of 3 units and the center lies on the y-axis, which set of values of a, b, c, d, and e might correspond to the circle?

Answers

The set of values which might correspond to the circle are A = 1, B = 1, C = 0, D = -8 and E = 7.

The equation of a circle.

Mathematically, the general form of the equation of a circle is given by;

(x - h)² + (y - k)² = r²

Where:

h and k represents the coordinates at the center.r is the radius of a circle.

Based on the information provided that the center of the circle lies on the y-axis, we have:

(h, k) = (0, 4)

Radius, r = 3 units.

Substituting the given parameters into the formula, we have;

(x - 0)² + (y - 4)² = 3²

x ² + y² - 8y + 16 = 9

x ² + y² - 8y + 7 = 0.

Therefore, the set of values which might correspond to the circle are A = 1, B = 1, C = 0, D = -8 and E = 7.

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Complete Question:

The general form of the equation of a circle is Ax² + By² + Cx + Dy + E = 0, where A = B. If the circle has a radius of 3 units and the center at (0, 4), which set of values of A, B, C, D, and E correspond to the circle?

Richard’s checking account balance was $57.34 at the beginning of the week. During the week, he recorded the transactions below.
A 2-column table with 4 rows. Column 1 is labeled Transaction with entries groceries, credit card bill, deposit, gas. Column 2 is labeled Amount with entries negative 25.37, negative 50, 163.75, negative 13.27.
What was Richard’s account balance at the end of the week?

$

Answers

Richard’s account balance at the end of the week is $ 132.45

What is Account Balance ?

The amount of money in a person's bank account is called the account balance of that person

It is given that

Account balance of Richard’s at the beginning of the week = $57.34

Deposits in the week  : $ 163.75

Expenses in the week : Groceries + Credit card bill + Gas

Total Expenses in the week = 25.37 + 50 + 13.27

                                               = $ 88.64

The Richard’s account balance at the end of the week = Account Balance +Total Deposits - Total Withdrawals

= 57.34 + 163.75 - 88.64

Therefore , Richard’s account balance at the end of the week is $ 132.45.

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