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
GuDViN [60]
3 years ago
7

Solve for y. 2x-3y=9

Mathematics
1 answer:
cluponka [151]3 years ago
6 0

Answer:

y = 2/3x - 3

Step-by-step explanation:

Step 1: Write equation

2x - 3y = 9

Step 2: Solve for <em>y</em>

  1. Subtract 2x on both sides: -3y = 9 - 2x
  2. Divide both sides by -3: y = -3 + 2/3x
  3. Rewrite: y = 2/3x - 3
You might be interested in
Kal is making 3 batches of cookies. Each batch calls for 3/4 cups of sugar. How much sugar will Kal use for all 3 batches?
balu736 [363]

Answer:

2 1/4 cups of sugar

Step-by-step explanation:

You could change 3/4 to a decimal which is .75

Then multiply that by 3

The result was 2.25, so you would convert that into a fraction which would be 2 1/4

8 0
3 years ago
Use a net to find the surface area of the right triangular prism shown below:
AnnZ [28]
I don't exactly know what a net is, but I can figure out the surface area (maybe). When you put this pattern together, you have to make a couple of assumptions.
First of all the 2 triangles are connected to a base that's 8 by 13. 
Base
The area of the base = 8 * 13 = 104 square feet.

Two Triangles.
The area of any triangle is 
Area = 1/2 b * h
Area = 1/2 *12 * 5
Area = 30 square feet. There are 2 triangles so ...
The total area of both is 60 square feet.

Overlap
Now we come to the tough part.  how big is it from the first dotted line to the second one?
The answer is 5. But why? Well the 5 comes from the the length of the side that has to be covered by this pattern. The 5 is part of the triangle. 

How far across is the dotted line? The answer is 8. Why again? That's the width of the whole prism or pattern.
So the area between the two dotted lines is 5 * 8 = 40

Finally the area over the 12. 
The question is how far is it from the second dotted line to the last boundary? The answer is 12. And it's width is 8
So the area = 12 * 8 = 96

Total area
96 + 60 + 40 + 104 = 300 square feet. 
4 0
3 years ago
How do i calculate the percentage difference between two numbers????
lawyer [7]

When finding the percent difference between two numbers, there are two ways you can do this.

1. The first way is how to calculate the percentage INCREASE of two numbers:

-The formula is Increase / Original Number × 100 = % increase

Step 1: Find out the difference between the two numbers you're comparing. New number - Original number = Increase.

Step 2: Divide the increase by the original number and then multiply your answer by 100. (If your answer is a negative number, then it is a percent decrease, not a percent increase.)

2. The second way is how to calculate the percentage DECREASE of two numbers:

Step 1: Find out the difference between the two numbers you're comparing. Original number - New number = Decrease.

Step 2: Divide the decrease by the original number and then multiply your answer by 100. Decrease ÷ Original Number × 100 = % Decrease. (If your answer is a negative number, then is is a percent increase, not a percent decrease.)



8 0
3 years ago
Parts of a Parabola????
eduard

Answer:

the directrix and focus the axis of symmetry (goes through the focus, at right angles to the directrix) the vertex (where the parabola makes its sharpest turn) is halfway between the focus and directrix.

Step-by-step explanation:

7 0
3 years ago
When I get multiplied by any number, the sum of the figures in the product is always me. What am I?
vladimir1956 [14]

Answer: 9

Step-by-step explanation:

When you multiply 9*9, you get 81 whose sum is 9 (8+1)

Likewise, 9*8=72( 7+2=9)

8 0
3 years ago
Read 2 more answers
Other questions:
  • The line that contains a slope of 1/2 and passes through the point (-2, -3).
    9·1 answer
  • Find a number which decreased by 12 equals 3 times it’s opposite
    11·1 answer
  • Graph the inequality 3x+y≥-7
    13·1 answer
  • What is the value of x when solving the equation Negative 2 x + (negative 8) = 2 x + 8 using algebra tiles?
    5·2 answers
  • Unit rate with complex fractions 7th grade!
    8·1 answer
  • PLEASE HELP!
    14·1 answer
  • Lines AB and CD are straight lines. Find x and y. Give reasons to justify your solutions.
    7·1 answer
  • Tessellations
    8·1 answer
  • I need this done help please asap i have a meeting with my teacher in 30 minutes
    15·1 answer
  • Help me solve for x and y .
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!