Mathematics High School

Six times a number plus 3 equals three times the same number minus
nine. What is the number? Hint: Let x= a number. Create the expression for
the other number based on the information
in the word problem.

Answers

Answer 1

Answer:

x = -4

Step-by-step explanation:

Six times a number plus 3 equals three times the same number minus

nine. This equation is 6x + 3 = 3x -9. Next, solve this equation and you get -4. Plug in -4 for x and you should get -21 on both sides.

Related Questions

Prove tanAsinA + cosA = sec A

Answers

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identities

tanx = [tex]\frac{sinx}{cosx}[/tex] , sin²x + cos²x = 1, secx = [tex]\frac{1}{cosx}[/tex]

Consider left side

tanAsinA + cosA

= [tex]\frac{sinA}{cosA}[/tex] × sinA + cosA

= [tex]\frac{sin^2A}{cosA}[/tex] + cosA

[tex]\frac{sin^2A+cos^2A}{cosA}[/tex]

= [tex]\frac{1}{cosA}[/tex]

= secA = right side , thus proven

Kasey asked 6 of her friends how many episodes of their favorite show they
watched during the quarantine. Kasey determined the following measures about
the number of episodes watched by the 6 friends. Mean: 10, Median: 9.5, and
Range: 14. The three friends who watched the most episodes over the quarantine
watched 18, 13, and 12. How many episodes did the other 3 friends watch?*
O A. 4,6,7
B. 4, 4,7
C. 5, 8, 9
O D. 2,3,5

Answers

Answer:

A

Step-by-step explanation:

6 friends

Mean - 10

Median - 9.5

Range - 14

3 friends watched 12, 13, and 18 movies.

Let's find the sum, this will help us find the total number of movies the other 3 friends watched.

12 + 13 + 18 = 43

The mean is all their movies added toether, divided by the number of friends.

m = number of movies the other friends watched.

(43 + m) / 6 = 10        Multiply each side by 6

43 + m = 10 * 6

43 + m = 60          Subtract 43 from each side

m = 60 - 43

m = 17

So we know the total movies the other friends watched is 3.

A. 4+6+7 = 17

B. 4+4+7 = 15

C. 5+8+9 = 22

D. 2+3+5 = 10

We know the answer is A.

We can check it by looking at the Median, the median is the middle number, if there are an even number of samples, you add the 2 middle numbers together and divide by 2.

4, 6, 7, 12, 13, 18

So 7+12 = 19

19/2 = 9.5

So we know for sure A is correct!

Rewrite each expression using properties
2(x + 4) - 3(x -5)

Answers

2(x + 4) - 3(x -5) = 2x + 8 - 3x + 15 = 23 - x

can someone help me ? and can you also explain how u got the answer ?

Answers

Answer:

Step-by-step explanation:

1 and 3 is 100° bc 80+80 = 160 n 360-180 is 200 but since u hv two angles u hv to divide it in half. for the second problem 3 is 65 bc 180-115, 1 is 90° 2 is 115 bc 180+ 65 is 245 n then 360-245 is 115. for the last problem 1 is 47 bc 180-133 n then u hv corresponding angles, 2 is 133 n then 3 is 47

Please help me out on this! Would be greatly appreciated

Answers

the answer is "nonlinear association"

What is the solution to (4x10^3) x (6x10^6)

Answers

Answer:

2.4 x 10^10 =24000000000

Step-by-step explanation:

Write the following equation in standard form.

y=5x+9

Answers

Answer:

5x-y=-9

Step-by-step explanation:

As people entered the gym for a volleyball tournament, members of the pep club were
selling $3 raffle tickets for a tablet and $4 raffle tickets for a gaming system. The number
of $4 tickets sold was four more than one half the number of $3 tickets sold. The pep club
raised $636 from the ticket sales. Write a system of equations to represent the
given scenario

Answers

Answer:

64839 time is mistake for girls

Step-by-step explanation:

mark me BRAINLIEST

Answer:for school fundraiser ,you sold 33 raffle tickets and you friend sold 15 raffle tickets write the ratio of tickets you sold to tickets your friend sold as a fraction in simplest form

PLS HELP

Which function represents the transformation that moves figures to the right 3 units and down 7 units?

Answers

Answer:

A

Step-by-step explanation:

Adding positively to an x moves it right, and negative moves left. Adding to a y moves it up, and subtracting moves it down.

The transformation that moves figures to the right 3 units and down 7 units is A. (x, y) ⇒ (x + 3, y - 7)

Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, translation and dilation.

Translation is the movement of a point up, down, right or left in the coordinate plane. If a point A(x, y) is moved a units right and b units down, the new location would be at A(x + a, y - b).

A function that moves figures to the right 3 units and down 7 units can be represented by:

(x, y) ⇒ (x + 3, y - 7)

Find out more at: https://brainly.com/question/11707700

Hamburgers are sold in packages of 20, while buns are sold in packages of 12. What are the least numbers of packages you should buy in
order to have the same number of hamburgers and buns?

Answers

Answer:

5 buns and 3 boigas

Step-by-step explanation:

A triangle has side lengths of (8.5q+1.6r)(8.5q+1.6r) centimeters, (3.5q-4.1s)(3.5q−4.1s) centimeters, and (4.4s+5.8r)(4.4s+5.8r) centimeters. Which expression represents the perimeter, in centimeters, of the triangle?

Answers

Answer:

7.4r+0.3s+12q

Step-by-step explanation:

I am in 8th grade and we do these problems for honors algebra and if you add (8.5q+1.6r)+(3.5q-4.1s)+(4.4s+5.8r) you will get the answer above

CORRECT ANSWER WILL GET BRAINLIEST!!!!

Answers

Answer: The answer is x=5

Explanation:
5x?=25

If you divide 25 by 5 then the answer is 5. So x would equal 5.

Need answer now !!

(02.01 LC)
Is the following relation a function?


O Yes

O No

Answers

Answer:

Yes

Step-by-step explanation:

Each value only maps out to one value, so that means it is a function.

Answer:

YES

Step-by-step explanation:

After a reflection of the figure, the image vertices are A'(5, 1), B'(3, –1), and C'(7, –1). What is the line of reflection? Triangle A B C graphed on a coordinate plane with vertices at A negative 1 comma 1, B 1 comma negative 1, and C negative 3 comma negative 1. A. y = 2 B. x = 2 C. y = –x D. y = 2x

Answers

Answer:

B, x = 2

Step-by-step explanation:

I'll explain in a seconda

I HAVE UNTIL 3:30 PLZ HELPPPP 40 POINTS AND BRAINLIEST

Jake needs to buy 120 beverages for a party. Juices come in 8-packs and water comes in 12-packs.

Select all the pairs that represent a combination of juice and water that Jake can buy.

A (0, 10) D (, 5)

B (12, 2) E (30, –10)

C (–2, 11)

Answers

Answer:

A and B

Step-by-step explanation:

took the test and got this question right for ya :)

help plezz if u can it counts as a grade

Answers

There is 4 lines only

Addition and Subtraction of Rational
Numbers - Question 8
8
k fueleducation"
8
9
|
5
12
+=
3
12
Reduce the answer to lowest terms.
-2
-1
8
-1
12
12

Answers

Answer:

[tex]\frac{-1}{6}[/tex]

Step-by-step explanation:

[tex]-\frac{5}{12} + \frac{3}{12} = -\frac{2}{12}[/tex]

[tex]-\frac{2}{12} = -\frac{1}{6}[/tex]

which can also be written as:

[tex]\frac{-1}{6}[/tex]

Which of the following is a rational number?

A) v15

B) v16

C) v17

D) v18

(the v is supposed to be the square root sign)

Answers

Answer:

B. √16=4

Step-by-step explanation:

Can you please solve this.

Answers

Answer:

They are not similar.

Step-by-step explanation:

They aren't the same shape. If they were the answer would be 49, but that doesn't make sense.

They are not similar

Explanation: I did this

Water flows through a pipe at a rate of 5 quarts every 2 days. Express this rate of flow in cups per year.

Answers

The rate of flow in cups per year is  3645 cups per year.

How to determine the rate of flow in cups per year

To convert the rate of flow from quarts per day to cups per year, we first need to convert quarts to cups and days to years.

1 quart is equal to 4 cups,

So 5 quarts is equal to 5 x 4 = 20 cups.

1 year is equal to 365 days, so

2 days is equal to 2/365 = 1/182.5 years.

So the rate of flow in cups per year is 20 cups / (1/182.5 years) = 3645 cups per year.

Read more about rate at

https://brainly.com/question/24178013

#SPJ1

Solve for x and y please

Answers

Answer:

y=41  73=x

Step-by-step explanation:

180=x+9+98

minus 98 from both sides

82=x+9

minus 9 from both sides

73=x

2y=x+9 because they are corresponding angles

2y=73+9

2y=82

divide by 2 on both sides

y=41

I got the same answer as the guy above but i also included some work on paper with step by step instructions :) i’ll add the a picture to this let me know if you get the picture :)

I've attached a picture plz help

Answers

Answer:

Did they say what the a and b are worth

Step-by-step explanation:

Answer:

8a + 6b = 3

Step-by-step explanation:

Simplifying

8a + 6b = 3

Solving

8a + 6b = 3

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-6b' to each side of the equation.

8a + 6b + -6b = 3 + -6b

Combine like terms: 6b + -6b = 0

8a + 0 = 3 + -6b

8a = 3 + -6b

Divide each side by '8'.

a = 0.375 + -0.75b

Simplifying

a = 0.375 + -0.75b

SENDDD HELPPP PLZZZ ASAP

Answers

You were correct keep up the good work

Answer:

the answer is C

Step-by-step explanation:

hope this helps

What is the answer of 6xy + (-9xy)

Answers

Answer:

-3xy

Step-by-step explanation:

Answer:

6xy + ( -9xy) = 6xy - 9xy = -3xy

The ____ states that the sum of the measures of the interior angles of a triangle is 180°.
Koo

Answers

Triangle sum theorem

I need y'all to solve for p. steps are reccomened but not required. thanks!

(8.75/0.5-7.3)p +2.5 = 95.5

Answers

Answer:

p = 9.11

Step-by-step explanation:

10.2p + 2.5 = 95.5

10.2p = 93

p = 93/10.2 = 9.11

Select the equivalent expression.

Answers

Answer:

The Answer is B

Step-by-step explanation:

In [tex](a^{-2} * 8^{7})^{2}[/tex], each inner term has its exponent multiplied by the two on the outside. The answer is thus [tex]a^{-4}*8^{14}[/tex] or [tex]\frac{8^{14}}{a^{4}}[/tex]

Help me plzz this is my last bit of points and I need help !!!

Answers

Answer:

B

Step-by-step explanation:

12 ÷ 0 is undefined

The answer is B because division by 0 is undefined.

Solve. (2x - 6)< - 6 I cant figure out how to do this. Please help me

Answers

Answer:

Step-by-step explanation:

A dime is what fraction of a dollar?

Answers

Answer:

1/10

Step-by-step explanation:

A dime is 1/10 fraction of a dollar.

What are Fractions?

Fractions are numbers which are of the form a/b where a and b are real numbers. This implies that a parts of a number b.

Here, a is called the numerator and b is called the denominator. Any number can be expressed as fractions.

We have to convert a dime into a fraction of a dollar.

Number of dimes in a dollar = 10

10 dimes = 1 dollar

1 dime = 1/10 dollar

So we can say that one dime is 1/10 of a dollar.

Hence 1/10 fraction of a dollar is 1 dime.

To learn more about Fractions, click on the link given below :

https://brainly.com/question/10708469

#SPJ2

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