1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
slavikrds [6]
3 years ago
10

15 Solve for y| 3x - 8y = 24​

Mathematics
1 answer:
rewona [7]3 years ago
6 0

Answer:

\quad y=-\frac{24-3x}{8}

Step-by-step explanation:

1. Subtract 3x from both sides

3x-8y-3x=24-3x

2. Simplify

-8y=24-3x

3. Divide both sides by -8

\frac{-8y}{-8}=\frac{24}{-8}-\frac{3x}{-8}

4. Simply again to get answer.

You might be interested in
What is the slope of the line through (-3,0) and (-4,-2)?
rodikova [14]

AnswerY=-10/3x+11:

Step-by-step explanation:

M=0--2/-3-4= -10/3

Y-1=-10/3(x-3)

-10/3x+10+1

Y=-10/3x+11

4 0
3 years ago
7.Find the lengths of the missing sides in the triangle. If your answer is not an integer, leave it in simplest radical form. Th
Fed [463]

Here a right angled triangle given. one angle with measure 45^o given. The three sides of the triangle given 4, x, y.

We have to find, the sides which is opposite, adjacent and hypotenuse here.

We know that the side opposite to right angle is always hypotenuse. So, hypotenuyse = y.

The side adjacent to the given angle 45^o is x. So, here adjacent = x.

The opposite side is opposite to the given angle. So, opposite = 4.

Now we will use SOHCAHTOA that is sin(x) =\frac{Opposite}{Hypotenuse} , cos(x) =\frac{Adjacent}{Hypotenuse} , tan(x) =\frac{Opposite}{Adjacent}, where x is the angle given.

To get x, we will use tan. So we will get,

tan(45^o) = \frac{4}{x}

We know the value of tan(45^o) = 1. By substituting the value we will get,

1 =\frac{4}{x}

To find x, we have to move x here to the left side by multiplying it to both sides. We will get,

(1)(x) = (\frac{4}{x}) (x)

x = 4

So we have got the value of x here.

Now to find y, we will use the trigonometric function sine.

sin(45^o) =\frac{4}{y}

we know the value of sin(45^o) =\frac{\sqrt{2}}{2}

By substituting the value we will get,

\frac{\sqrt{2}}{2}  = \frac{4}{y}

By cross multiplying we will get,

(\sqrt{2}) (y) = (4)(2)

\sqrt{2}y = 8

We will get y by dividing both sides by \sqrt{2}, we will get,

\frac{\sqrt{2}y}{\sqrt{2}}   =\frac{8}{\sqrt{2} }

y =\frac{8}{\sqrt{2}  }

Now we will rationalize the denominator by multiplying \sqrt{2} to the top and bottom.

y =\frac{8\sqrt{2}}{(\sqrt{2})(\sqrt{2})}

y =\frac{8\sqrt{2}}{2}

y = 4\sqrt{2}

So we have got the required values of x and y.

8 0
3 years ago
Read 2 more answers
Aisha bought 15 apples and oranges for $9.00. Each orange costs $0.50, and each apple costs $0.65. Let x represent the number of
Alecsey [184]
I might be wrong but i think its 
.5x + .65y = 15
3 0
3 years ago
Read 2 more answers
Solve systems of equations by algebraically x-2y=7 <br> 2x+5y =5
Natali [406]

Answer:

(5,-1) or x=5 y=-1

Step-by-step explanation:

I used the substitution method to solve this!

<em>1. Pick one of your equations and solve for one of the variables. I chose the first equation and solved for x.</em>

x-2y=7

(Move the -2y to the other side of the equation in order to get the x by itself. You do the opposite, so it becomes +2y.)

x=2y+7

<em>2. Now take your second equation and plug in what you got for x into the x variable.</em>

2(2y+7)+5y=5

(Multiple 2 by everything inside of the parentheses.)

4y+14+5y=5

(We want to get the y by itself, so move the 14 to the other side.)

4y+5y=-14+5

(Combine all the like terms.)

9y=-9

(Divide the 9 from the y. What you do to one side you must do to the other.)

y=-1

<em>3. Since you have one variable solved for. Now take the first equation and plug in your y.</em>

x-2(-1)=7

(Multiple -2 by -1)

x+2=7

(Move the 2 to the other side in order to get the x by itself.)

x=5

<em>4. If needed, plug in your x and y values into the equations in order to check your answer.</em>

Hope this could help!

8 0
3 years ago
Read 2 more answers
Aimee has $10.00 to spend on school supplies. The following shows the price of each item in the school store. No sales tax is ch
Rainbow [258]

Answer:

17. yes - 9.95

18. yes - 9.45

19. no - 10.01

20. no 10.01

21. yes 9.86

4 0
2 years ago
Other questions:
  • leona has three dollars less than skye. together they have 17 dollars. how much money does skye have?
    8·1 answer
  • From the list below, determine which properties are for compounds. I. It takes a large amount of energy to separates the element
    6·2 answers
  • What is the value of the 11th term in the following geometric sequence? -5, -10, -20, -40
    11·2 answers
  • Hi there can anyone up here that's is really good in math please help me with this question please
    8·1 answer
  • What is 1 5/7 as a improper fraction?
    10·2 answers
  • Amy is 3 years older than her brother. Together, their ages are 14. Amy wrote the equation x+(x+3)=14 to represent the sum of th
    11·1 answer
  • In a data set with mean of 12 and standard deviation of 4, at least what percent of data falls between 4 and 20?
    10·1 answer
  • Compare positive and negative slope for linear relationships. How are they the same? How are they different?
    5·1 answer
  • The area of a rectangle is 27 m”, and the length of the rectangle is 3 m less than twice the width. Find the dimensions of the r
    13·1 answer
  • Solve the the equation by substitution<br>5x=-2y+48<br>x=-3y+20​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!