help pls first correct answer gets brainleist ​

Help Pls First Correct Answer Gets Brainleist

Answers

Answer 1
Let the number we are looking for be x. So 3+4+7+2x=30
2x=16
x=8

Hope that helps :3

Related Questions

Step 1: m∠m + m∠n + m∠o = 180 degrees (sum of angles of a triangle)
Step 2: m∠p − m∠o = 90 degrees (alternate interior angles)
Step 3: Therefore, m∠m + m∠n + m∠o = m∠o + m∠p
Step 4: So, m∠m + m∠n = m∠p

In which step did the student first make a mistake and how can it be corrected?

Step 1; it should be m∠m + m∠n + m∠o = 90 degrees (corresponding angles)
Step 1; it should be m∠m + m∠n + m∠o = 90 degrees (adjacent angles)
Step 2; it should be m∠o + m∠p = 180 degrees (alternate exterior angles)
Step 2; it should be m∠o + m∠p = 180 degrees (supplementary angles)

Answers

Answer:

they messed up on step one

Step-by-step explanation:

Answer:

Step 2; it should be m∠o + m∠p = 180 degrees (supplementary angles)

Step-by-step explanation:

Took the exam and got it right. Hope this helps! <3

Calculate the slope of the line that passes through (2,0) and (1,5).

Answers

Answer:

m= -5

Step-by-step explanation:

urgent !! please help !! can someone help me with this problem and show work

Answers

Answer:

x = 7      x= -2

Step-by-step explanation:

x^2 -5x -14 =0

What 2 numbers multiply to -14 and add to -5

-7*2 = -15

-7 +2 = -5

(x-7) (x+2) =0

Using the zero product property

x-7 =0   x+2 = 0

x = 7      x= -2

Answer:

Using the snowflake method, factors that multiply to give -14 and add to give -5 are: 2 and -7.

the factors are: (x+2)(x-7)

POINTS!! I NEED HELP WITH THIS, WILL GIVE BRAINLIEST TO BEST ANSWER
(6)

Answers

hypothesis = it is july
conclusion = it is hot

Answer:

Hypothesis: it is hot

Conclusion: It is July.

What are the solutions for x when y is equal to 0 in the quadratic function
y = x2 +9x?

Answers

Answer:

C) x = 0 or x = - 9

Step-by-step explanation:

[tex]y = {x}^{2} + 9x \\ \\ plug \: y = 0 \\ 0 = {x}^{2} + 9x \\ \\ x(x + 9) = 0 \\ \\ x = 0 \: \: or \: \: x + 9 = 0 \\ \\ x = 0 \: \: or \: \: x = - 9 [/tex]

See picture for math work and answer.

Please help!! Thank you ;)

Answers

Answer:

-1/3

Step-by-step explanation:

slope is rise over run so on this one you had to count down to -2 for the rise and count to 6 then simplify to make -1/3

The slope of the line will be equal to 1 / 3. The correct option is D.


What is a slope?

Slope or the gradient is the number or the ratio which determines the direction or the steepness of the line. The slope of the line is the ratio of the rise to the run.

The formula to calculate the slope of the line is,

Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )

The given coordinates of the point passing through the line are (-3,4) and (3,2).

The slope of the line will be calculated as,

Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )

Slope = ( 4- 2 ) / ( 3 + 3 )

Slope = 2 / 6

Slope = 1 / 3

Therefore, the slope of the line will be equal to 1 / 3. The correct option is D.

To know more about slopes follow

https://brainly.com/question/3493733

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Find the area of each circle.
Circumference = 407 in
Radius =
Area =
Help pls ASAP

Answers

Answer:

Answer:

- The area of the two bases is 32π in².

- The lateral area is 40π in².

- The total surface area is 72π in².

Step-by-step explanation:

there you go have a good day

DATE_
PAGE
if
I the selling
selling prices is Rs 7777 and
His loss is Rs 888 . Find the cost price of radio-
price of a radio​

Answers

Answer:

The cost price of a radio is Rs 8665

Step-by-step explanation:

There is a relation between the cost price, loss amount, and the selling price.

In the loss, the cost price must be greater than the selling price.

The cost price = selling price + Loss amount

In our question:

The selling price is Rs 7777

The loss is Rs 888

We need to find the cost price

Let us use the rule above

∵ The selling price = Rs 7777

∵ The loss = Rs 888

→ Substitute them in the rule above to find the cost price

∴ The cost price = 7777 + 888

∴ The cost price = 8665

The cost price of a radio is Rs 8665

What is the value of x!

Answers

10
because 18/12 = 1.5
so 15/1.5 =10

someone helppp lol.

Answers

Answer:

dam thats wat yall learn in whatever grade u r ik highter for sure but dam im  scared now

Step-by-step explanation:

what is the solution to the system of equations graphed below?

y=x+3
y=3x+1

Answers

Answer:

(1, 4)

Step-by-step explanation:

y=x+3

y=3x+1

y=x+3

x+3=3x+1

x=3x-2

-2x=-2

x=1

y=1+3

y=4

What is the answer I need help ASAP

Answers

Answer:

C) 4

Step-by-step explanation:

Lerola and her younger sister Kiara are jogging around a circular track. Lerola jogs far enough from the center of the circle that her laps are half a mile long. Kiara runs around a circle whose circumference is as long as Lerola's. How far from the center of the circle is Kiara running, in feet? ​Use 3.14 for pi. 3 2There are 5280 feet in a mile.

Answers

Circumference of circular track, C = 0.5 miles = 0.5×5280 feet = 2640 feet.

We know, circumference in circle is given by :

[tex]C = 2\pi r[/tex]

( Here, r is radius i.e distance of centre from track )

Putting values in above equation :

2 × 3.14 × r = 2640

6.28 × r = 2640

r = 420.38 feet

Therefore, distance between centre and track is 420.38 feet .

Hence, this is the required solution.

It takes Jamil 40 minutes to drive to work, plus or minus 8 minutes depending on traffic. What equation could be solved to find the shortest or longest times she might drive?

Answers

Answer:

Step-by-step explanation:

to find the longest it would be 40+8=48

to find the shortest it would be 40-8=32

hannah bought a pack of 12 cookies for $3.50 from the grocery store. how many packs of cookies can she buy for $17.50?

Answers

She can buy 5 boxes of cookies

Answer:

60 Cookies

Step-by-step explanation:

Set up a proportion

12 / 3.50 = x/ 17.50

Cross multiply

3.5x = 210

x = 60

Please help! I just need 1 more way !! i will mark brainliest

Answers

Answer:

f4

Step-by-step explanation:

There are 13 sixth grade classrooms at LMMS. Each class has about 28 students.
About how many students are there in the whole sixth grade?

Answers

Answer:

364 students

Step-by-step explanation:

multiply 13 by 28

Find the distance between
the points (3,-2) and (6,4).

Answers

Answer:

(3,6)

Step-by-step explanation:

First you find the difference between the y values.

6 - 3 = 3.

Then the x values.

4 - -2 = 6

Now form a triangle and use a^2 + b^2 = c^2

3^2 + 6^2 = x^2

9 + 36 = x^2

x = √(45), or 3√(5)

The distance is 3√(5).

Add the polynomials


(-12x^5-7x^3+12x^2+11)+(4x^3+6x^2-6x+3)

Answers

Answer:

-12x^5-3x^3+18x^2+14

A plumber charges a $45 fee to make a house call and then $25 for each hour of labor. The plumber uses an equation in the form y = m x + b to determine the amount to charge each customer.

Answers

Answer:

Your final equation should be y = 25 x + 45

Step-by-step explanation:

    The equation y = m x + b represents any linear equation. the m stands for slope, and the b stands for the y- intercept (when x = 0). To fill in the blanks you need to figure out which piece of information is which.

    Let's start with the y intercept. y, in this equation stands for the cost. And since the y intercept is when x equals zero, you need the cost that doesn't relate to the time the plumber was at the house. That would be the 45 dollar fee you pay the plumber to go to your house.

    Next, let's explain why the 25 dollars represents m (The slope) of this equation. You have to pay the plumber 25 dollars for every hour he spends at your house, so this cost goes up by 25 dollars every hour.

Your final equation should be y = 25 x + 45

you're welcome ;)

Teacher takes about 25 minutes to make out a test for a mathematics class. How long will it take to make out tests for all five classes?

Answers

Answer:

2h 5min

Step-by-step explanation:

1 class: 25 min

5 classes: 25 x 5 = 125 min = 2h 5min

The ratio of a rectangle's length to its width
is 2 : 1. If the length is 14 cm, what is its
width?

Answers

Answer:

2/1 = 14/x

cross mulitply

2x=14

2x/2=14/2

x=7

The width is 7 cm

Step-by-step explanation:

Find the distance between the point x = (-1,9) and y = (-2,8)

Answers

Answer:

1.4

Step-by-step explanation:

use distance formula

The volume of a cubical box is 64cm³ . What is its side?​

Answers

Answer:

4 cm

Step-by-step explanation:

x = the side of a cubical box

x^3 = 64

But 4^3 also = 64

=> x = 4

Answer:

Volume of a cube = a³

64 = a³

3 root 64 = a

4 cm = a

A rock is dropped from the top of a​ 2000-foot building. After ​second, the rock is traveling feet per second. After ​seconds, the rock is traveling feet per second. Let y be the rate of descent and x be the number of seconds since the rock was dropped. Part A: Write a linear equation that relates time x to rate y. (Hint: Use the ordered pairs (1,32) and (2,64) ) Part B: Use this equation to determine the rate of travel of the rock 17 seconds after it was dropped.

Answers

Answer:

[tex]y = 32x[/tex]

The rate is 224 ft/s

Step-by-step explanation:

Solving (a):

Given

[tex](x_1,y_1) = (1,32)[/tex]

[tex](x_2,y_2) = (2,64)[/tex]

Required

Determine the linear equation

First, we need to determine the slope using

[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

[tex]m = \frac{64 - 32}{2 - 1}[/tex]

[tex]m = \frac{32}{1}[/tex]

[tex]m = 32[/tex]

The equation is then calculated using:

[tex]y - y_1= m(x - x_1)[/tex]

[tex]y - 32= 32(x - 1)[/tex]

[tex]y - 32= 32x - 32[/tex]

Add 32 to both sides

[tex]y - 32 + 32= 32x - 32 + 32[/tex]

[tex]y = 32x[/tex]

Solving (b):

Given

[tex]x = 7[/tex]

Required

Determine y

We have that:

[tex]y = 32x[/tex]

Substitute 7 for x

[tex]y=32 * 7[/tex]

[tex]y=224[/tex]

Hence, the rate is 224 ft/s

3 hours to clean 5 houses how many houses could be cleaned in 9 hours

Answers

Answer:

15 houses is the answer

Answer:

Let x be the no.of houses cleaned in 9 hours

3 hours                     5 houses

9 hours                     x houses

Using cross multiplication, you get the formula:

3x = 45

x = 15

Therefore, 15 houses are cleaned in 9 hours.

On the diagram below, find the measure of each angle show all your work

Answers

Answer:

3

Step-by-step explanation:

from angles on a line = 180°

therefore

(14x + 70 + 20x +8)°= 180°

34x + 78 =180

34x = 180-78

34x= 102

x = 102/34

x= 3

Answer:

3

Step-by-step explanation:

!

For the month of April, a checking account has a balance of $523 for 23 days, $2340 for 4 days, and $238 for 3 days. What is the account's mean daily balance for
April?

The account's mean daily balance for April is approximately $
(Round to two decimal places as needed.)

Answers

Answer:

Approximately $103.37 per day

Step-by-step explanation:

As April has 30 days, we have to add together $523, $2340, and $238 to get the total balance for the entire month. In this case, the total balance is $3101. Now, referring back to April having 30 days, $3101÷30 days=$103.366666666 a day, when rounded to two decimal places, it equals $103.37 a day. So, the account's mean daily balance for April is approximately $103.37 a day.

Hopefully the explanation and the answer helps!

The mean daily balance will be 736.77

What is weighted mean?

Weighted mean is the mean where some of the value contributing more than the other values.

Weighted mean can be calculated by dividing the sum of frequencies and value by the sum of the frequencies.

weighted mean= ∑fₙxₙ/∑fₙ

where f is the frequency and x is the value.

So according to asked question,

in April, balance is in such a way that $523 for 23 days, $2340 for only 4 days, and $238 for only 3 days.

x₁=$523   ,   f₁=23

x₂=$2340   ,   f₂=4

x₃=$238   ,   f₃=3

weighted mean= sum of the product frequency and value/sum of frequency

=  ∑fₙxₙ/∑fₙ

= ((523*23)+(2340*4)+(238*3))/(23+4+3)

=22103/30

=736.7666≅736.77

Therefore the mean daily balance will be $736.77.

Learn more about weighted mean

here: https://brainly.com/question/23902866

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WILL GIVE BRAINLIEST FAST!! Will Give Brainliest if you show all the steps. 8x - 6 / 2 = x + 12
Solve for X

Answers

Answer: 15/7 2 1/7

Step-by-step explanation: First divide 8x-3=x+12 Then add 3 to both sides.

8x=x+15 Subtract x from both sides. 7x=15 Then divide again so 7/7 and 15/7. If you simplify it become 2 1/7

Answer:

x = 15/7

Step-by-step explanation:

Reduce the fraction with 2

8x - 3 = x + 12

Move variable to the left-hand side and change its sign

8x - x - 3 = 12

Move constant to the right-hand side and change its sign

8x - x = 12 + 3

collect like terms

7x = 12 + 3

Add the numbers

7x = 15

Divide both sides of the equation by 7

Solution: x = 15/7

Alternate form

x = 2 1/7, x = 2.142857

The table represents a linear function.
What is the slope of the function?
-3
-2
3
х
-2
-1
0
1
2
у
-2
1
4
7
10

Answers

The answer is -2 bro

The slope of the table is 2

How to determine the slope?

From the table, we have the following points:

(x,y) = (0, 4) and (1,7)

The slope is then calculated as:

m = (y2 - y1)/(x2 - x1)

Substitute known values

m = (7 - 4)/(1 - 0)

Evaluate the differences

m = 3/1

Divide

m = 2

Hence, the slope of the table is 2

Read more about slopes at:

https://brainly.com/question/3493733

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