matematicas 2×-4y=-8​

Answers

Answer 1

Answer:

y = 2.5

Step-by-step explanation:

-4y = -8-2

-4y = -10

y = -10÷-4

y = 2.5


Related Questions

Find the value of x that makes m\\n

Answers

Answer:

60

Step-by-step explanation:

m and n are parallel the 3x=180

180/3=60

The value, v, does not equal 2 1/2

Answers

Answer:

We are going to need the whole question dear <3

Answer:

I need help to

Step-by-step explanation:

I need help ASAP
questions:
1. what is the measure of angle K?
2. What is the measure of angle M?
3. what is the value of "x"?​

Answers

1) k is 180*-120*=60*
2)M is 180*-40*=140*

Determine whether this situation represents independent or dependent events. "Three green jelly bean, five red jelly beans and two orange jelly bean are in a bag. What is the probability of selecting an orange jelly bean, putting it back, and then selecting a green jelly bean?" Question 1 options: Independent Events Dependent Events

Answers

Answer:

Independent Events

Step-by-step explanation:

Given

[tex]Green = 3\\ Orange = 2\\ Red = 5[/tex]

Required

Dependent or independent event

The probability of selecting a green jelly remains unchanged before and after selecting the first orange jelly.

Before selecting the orange jelly:

[tex]P(Green) = \frac{Green}{Total}[/tex]

[tex]P(Green) = \frac{3}{10}[/tex]

After selecting the orange jelly:

[tex]P(Green) = \frac{Green}{Total}[/tex]

[tex]P(Green) = \frac{3}{10}[/tex]

Because the probabilities remain unchanged, the selection of a green jelly is independent of the selection of the first orange jelly.

i need help in this qs :0

Answers

Answer:3x+6=2x+21 base angle of isosceles triangle

3x-2x=21-6

X=15

<J=3×15+6=51

<k=2×15+21=51

,<I=180-51-51=78

Step-by-step explanation:

find the x intercept and the y intercept of the graph of the equation 5x+4y=40

Answers

Answer:

x intercept is 8, y intercept is 10

Step-by-step explanation:

x intercept is the x value for which the graph crosses the x-axis. Similar for y.

5x + 4y = 40 describes a straight line, so we should have no problem with finding those values

Let's find an x for which y = 0

5x + 4y = 40

substitute y=0

5x = 40

x = 8

Let's find a y for which x = 0

5x + 4y = 40

substitute x=0

4y = 40

y = 10

Find the indicated side of the
right triangle.
45°
у
6
45°
y = [?]/
Enter

Answers

Answer:

y = 6[tex]\sqrt{2}[/tex]

Step-by-step explanation:

Using the cosine ratio in the right triangle and the exact value

cos45° = [tex]\frac{1}{\sqrt{2} }[/tex] , then

cos45° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{6}{y}[/tex] = [tex]\frac{1}{\sqrt{2} }[/tex] ( cross- multiply )

y = 6[tex]\sqrt{2}[/tex]

Estimate the perimeter of the figure to the nearest whole number.

Answers

Answer:  perimeter 28 units

==========================================================

Explanation:

Refer to the diagram below. In figure 1, I'm showing how the purple side A moves outward to the left, and the green side B moves up. This effectively expands the corner out, but we keep the same perimeter (since sides A and B didn't change in length). Apply these sort of steps to each of the four corners and you'll get what you see in figure 2. The purple box has the same perimeter as the orange original figure.

Why go through these steps? Because it's much easier to find the perimeter of a rectangle than the perimeter of some complicated shape like this. The purple rectangle in figure 2 has horizontal length of 8 units, and the vertical width is 6 units.

The perimeter of the purple rectangle is

P = 2*(length+width)

P = 2*(8+6)

P = 2*14

P = 28

Or you could say: 8+6+8+6 = 14+14 = 28

The purple rectangle in figure 2 has perimeter of 28 units, so the orange figure also has the same perimeter.

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

Another approach to find the perimeter is to ignore figures 1 and 2, and simply count the number of edges along the outside. You should count 28 in total. I recommend you mark each side counted with a value so you don't lose track.

Please hurry this is 7th grade hon math

Answers

Answer:

4) B

5) B

6) A

Step-by-step explanation:

Answer:

4) no

5) 8x + 1.50

6) 1, 2, 0, 5

Step-by-step explanation:

4) no- first step is to subtract 10

5) number of apples times price of $8 plus a single purchase of $1.50

6) all values greater than -2

If discount rate is 12%, the present value of Rs X recieved at the end of each year for the next five years is equal to

Answers

Answer:

Present Value = [tex]X [\frac{1}{(1 + 0.12)^{1} } + \frac{1}{(1 + 0.12)^{2} } + \frac{1}{(1 + 0.12)^{3} } + \frac{1}{(1 + 0.12)^{4} } + \frac{1}{(1 + 0.12)^{5} } ][/tex]

Step-by-step explanation:

To find - If discount rate is 12%, the present value of Rs X received at the end of each year for the next five years is equal to .... ?

Solution -

We know that, formula for finding the Present vale is given by

Present value = Future value / (1 + r)ⁿ

where r is the rate of interest

and n is Number of periods

Now,

Here in the question, we have

r = 12% = 12/100 = 0.12

n = 5

Also, Given that, we have received Rs X at the end of each year

So,

Present Value = [tex]\frac{X}{(1 + 0.12)^{1} } + \frac{X}{(1 + 0.12)^{2} } + \frac{X}{(1 + 0.12)^{3} } + \frac{X}{(1 + 0.12)^{4} } + \frac{X}{(1 + 0.12)^{5} }[/tex]

                        = [tex]X [\frac{1}{(1 + 0.12)^{1} } + \frac{1}{(1 + 0.12)^{2} } + \frac{1}{(1 + 0.12)^{3} } + \frac{1}{(1 + 0.12)^{4} } + \frac{1}{(1 + 0.12)^{5} } ][/tex]

⇒Present Value = [tex]X [\frac{1}{(1 + 0.12)^{1} } + \frac{1}{(1 + 0.12)^{2} } + \frac{1}{(1 + 0.12)^{3} } + \frac{1}{(1 + 0.12)^{4} } + \frac{1}{(1 + 0.12)^{5} } ][/tex]

0.5+2x < 14.5 whats the answer

Answers

Answer:

x < 7

Step-by-step explanation:

0.5 + 2x < 14.5

2x < 14.5 - 0.5

2x < 14

x < 14 ÷ 2

x < 7

( To solve this is basically solving an equation. It's just that that instead of an equal sign, a greater than, less than, greater than or equal to or a less than or equal to sign is present. )

Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.


A couple of friends decide to race each other. Valentina can run 7 meters per second, whereas Felipe can run 8 meters per second. Because she is slower, Valentina also gets a head start of 4 meters. Shortly after they start running, Felipe will catch up to Valentina. How long will that take? How far will Felipe have to run?


It will take ____seconds for Felipe to run ____meters and catch up to Valentina.

Answers

Five seconds and 8meters

Write the equation in standard form.
y + 4 = 3 (3x + 3)

Answers

Standard is
y= 9x + 5

Kree works for a constant hourly wage of w dollars. Which choice shows the correct relationship between e, Kree's total earnings in a week, and h, the number of hours he worked during the week?

Answers

W*H=E
Hourly wage times the number of hours worked that week equals Kree’s total earnings for the week

Find the value of each variable. All figures are parallelograms.

Answers

Since it’s a square, all angles are 90 degrees

3x=90
x=30

4y=90
y=22.5


brainliest?

x + 4y = 16 and 2x + 12y = 48 What is the value of x+y in the solution of the system?

Answers

Answer:

x = − 4y + 16

x = − 6y + 24

Step-by-step explanation:

Let's solve for x.

x + 4y = 16

Step 1: Add -4y to both sides.

x + 4y + − 4y = 16 + − 4y

x = − 4y + 16

Answer:

x = − 4y + 16

Let's solve for x.

2x + 12y = 48

Step 1: Add -12y to both sides.

2x + 12y + − 12y = 48 + − 12y/2x= − 12y + 48

Step 2: Divide both sides by 2.

2x/2 = − 12y + 48/2x = − 6y + 24

Answer: x = − 6y + 24

( I hope this was helpful) >;D

will give brainliest! please help quick

A can of soup is 12 cm tall and has a radius of 4 cm.

What is the volume of soup that the can will hold?


48π cm³

80π cm³

144π cm³

192π cm³

Answers

Answer:

192π cm³

Step-by-step explanation:

First, do π(4^2). Then, multiply that times the height. So, 50.24 x 12 = 602.88. But, the question is asking your answer in terms of π. So, do 4^2 x 12. So, 4^2 x 12, gives you the answer: 192. Now change that to make it in terms of π. So, your answer will be: 192π cm³

Answer:

give other brainliest

Step-by-step explanation:

Researchers once surveyed college students on their Face book use. The following two-way table displays data for the sample of students who responded to the survey.
How many students in the survey were in the age category of 18 to 22?
_____ students.

Answers

Answer:

82

Explanation:

78 respondents aged 18 to 22 use face book and 4 respondents aged 18 to 22 do not use face book. since there are no other options for the survey, the total number of students who were surveyed that are aged 18 to 22 would be 78 + 4 = 82.

i hope this helps! :D

The number of students in the age category of 18 to 22 is 82.

Using the two - way table Given ;

The Number of students in the age category of 18 to 22 include :

(Number of those who use fb + number of those who do not use Fb)

Number who uses Fb = 78

= 78Number who do not use Fb = 4

Hence, The Total number surveyed between age 18 to 22 = (78 + 4) = 82.

Learn more : https://brainly.com/question/23884801?referrer=searchResults

PLS HELP!
Alexis has a rectangular backyard that is 50 yards by 55 yards. She wants to build a
fence that stretches diagonally from one corner to the opposite corner. About how
many yards of fencing will Alexis need? Round to the nearest tenth.

Answers

Given:

Alexis has a rectangular backyard that is 50 yards by 55 yards.

She wants to build a fence that stretches diagonally from one corner to the opposite corner.

To find:

The length of the fencing she needs.

Solution:

We have,

Length = 50 yards

Width = 55 yards

We know that, the diagonal of a rectangle is

[tex]Diagonal=\sqrt{length^2+width^2}[/tex]

[tex]Diagonal=\sqrt{(50)^2+(55)^2}[/tex]

[tex]Diagonal=\sqrt{2500+3025}[/tex]

[tex]Diagonal=\sqrt{5525 }[/tex]

On further simplification, we get

[tex]Diagonal=74.3303437[/tex]

[tex]Diagonal\approx 74.3[/tex]

Therefore, the length of the required fencing is 74.3 yards.

According to the bar graph below, what is the mode of the data set?





75
80
90
70

Answers

Answer:

75

Step-by-step explanation:

Mode is the most frequent and 75 happens to be the most frequent. I hope this helps!

Answer:

the awnser would be 75 because the mode is the biggest and as we can see here 75 is the biggest .

Step-by-step explanation:

hope it helped :]

What is the slope of the line that passes through the points (6, -2)(6,−2) and (12, -2) ?(12,−2)?

Answers

Answer:

true

Step-by-step explanation:

Convert Roman Numeral:

Answers

The conversion of CIX from roman numeral to Hindu-arabic form is; 109

How to convert roman numerals?

We are given the roman numeral; CIX

Now, in roman numerals we know that;

C = 100

IX = 9

Thus, we can express the given roman numeral as;

CIX = 100 + 9

CIX = 109

Read more about Roman Numerals at; https://brainly.com/question/17380759

#SPJ1

Type the missing number in this sequence: 1, 2, 4, 8,​

Answers

Answer:

16

Explanation:

what comes next is 16

for the function: y=2^x

3.What is 25% written as a decimal? (Hint: Don't forget to take away the "%" sign or it will be marked wrong.)

Answers

Answer:

0.25

Step-by-step explanation:

Answer:0.25

25% = 25 / 100

= 0.25

diagonals do not meet each other at right angles in a square true or false

Answers

False like a trapizoid they will touch sides a square wont but diagonal will square will I smart respectt

me

Find the measure of each angle.
Pls help I’m so confused

Answers

Answer:

1: 63°

2: 117°

3: 63°

jjskwnwb

Anthony took a taxi from his house to the airport. The taxi company charged a pick-up fee of $2.60 plus $3 per mile. The total fare was $35.60, not including the tip. Write and solve an equation which can be used to determine xx, the number of miles in the taxi ride.

Answers

Answer:

Equation: 35.60 = 2.60 + 3x

It was 11 miles

Step-by-step explanation:

35.60 = 2.60 + 3x

3x = 33

x = 11

The linear function for the fare is:

[tex]F(x) = 2.6 + 3x[/tex]

Solving the equation, it is found that the taxi ride was of 11 miles.

A linear function for a cost considering a distance of x miles has the following format:

[tex]F(x) = F(0) + ax[/tex]

In which

F(0) is the fixed cost.a is the cost per mile.

In this problem:

Pick-up fee of $2.60, thus [tex]F(0) = 2.6[/tex]Cost per mile of $3, thus [tex]a = 3[/tex].

The function is:

[tex]F(x) = 2.6 + 3x[/tex]

Fare of $35.60, thus [tex]F(x) = 35.60[/tex] and we solve for x to find the number of miles.

[tex]35.6 = 2.6 + 3x[/tex]

[tex]3x = 33[/tex]

[tex]x = \frac{33}{3}[/tex]

[tex]x = 11[/tex]

There were 11 miles in the taxi ride.

A similar problem is given at https://brainly.com/question/16302622

Help please I don’t know what to do ASAP last question

Answers

Answer:

y = x - 3/5

Step-by-step explanation:

Slope = -1

(0 , -3/5)

y - y1 = m(x - x1)

y + 3/5 = -1(x - 0)

y + 3/5 = x

y = x - 3/5

Answer:

y = x - 3/5

Step-by-step explanation:

Hope this helps

how is a corm different from a bulb?​

Answers

Answer:

Corm and Bulb- Differences. Bulbs are structurally short stems with fleshy leaves or leaf bases. Corms are rounded, underground storage organs consisting of a swollen stem base covered with scale leaves. Bulbs are modified leaves that store nutrients.

Step-by-step explanation:

A plastics company has 75 employees. Management wants to gather data about working conditions. A random sample of 30 employees was selected to receive an anonymous survey. Of those selected, 22 completed the survey. In this scenario, the population is . In this scenario, the sample is .

Answers

Answer:

22 completed surveys

Step-by-step explanation:

In the scenario described above, the sample to be used is the information given by the 22 completed surveys. This is because, the remaining 8 initial samples give no information regarding the working condition of employees. Hence, this data points are the null points and may have to be removed from the data.

Therefore, the sample in the scenario described above are the 22 completed surveys from the initial 20 samples selected.

Answer:

1. 75 employees

2. 22 employees

Step-by-step explanation:

Edge 2021:)

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