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
liberstina [14]
3 years ago
11

Explain how you know that the equation 3x = 9 is equivalent to the equation x =3.

Mathematics
1 answer:
Marat540 [252]3 years ago
6 0

Hey there!

If x = 3 then substitute it into the equation

3(3) = 9

3(3) = 9

9 = 9

Answer: 9 = 9, so this makes this statement is true

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

You might be interested in
Describe the slope of the line passing through points A(-2,3) and B(4,-3)
erik [133]

Answer:

0/2 is ZERO is positive

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Find the area of a rectangle with a base of 5 feet and a height of 9 1/2 feet​
gayaneshka [121]

The area of the rectangle is 47 1/2

7 0
2 years ago
By how much does the dependent variable change in response to a change of 1 unit of the independent variable?
dalvyx [7]

Answer: C) 5

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

x = independent variable, y = dependent variable

Assuming this is a linear function, each increase of x by 2 leads to y going up by 10. So 10/2 = 5 is the unit increase each time x bumps up by 1.

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

An alternative is to use the slope formula to get

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

m = (25 - 15)/(4 - 2)

m = 10/2 <--- this expression shows up again

m = 5 <---- leading to the same answer as before

So we see that the slope formula is a more drawn out method to finding the answer.

6 0
3 years ago
Read 2 more answers
Su Ling started an art project with 1 yard felt. She used 5/6 yard. How much felt does Su Ling have left?
damaskus [11]

Answer:

1/6 yard of felt

Step-by-step explanation:

Su Ling started with one yard, and she used 5/6 of it, which means five-sixths of the yard of felt get taken away. Now you have the last sixth of the yard left over - 1/6 of a yard of felt. One equals six sixths, so here's the math -

1yd = 6/6 yd

6/6 yd - 5/6 yd = 1/6 yd

7 0
2 years ago
2x+1y=-9<br><br> Please help
xenn [34]

Answer:

x=-(9+1y)/2

y=-2x-9

Step-by-step explanation:

2x=-9-1y

x=-(9+1y)/2

-1y=2x+9

y=-2x-9

5 0
3 years ago
Other questions:
  • yler and Bethany have 240 feet of fencing with which to build a garden. Tyler wants the garden to be in the shape of a square, w
    9·1 answer
  • Can someone help? Thanks! :)
    10·1 answer
  • A scientist is observing the reproduction of a certain bacteria. On Monday, she started with 2 bacteria and the number of bacter
    5·1 answer
  • Solve the formula 12x+2y=10 for y
    11·2 answers
  • A bag contains 8 red. 3 blue and 13 yellow discs. A disc is selected at random from the bag.
    5·2 answers
  • Solve the following equation for x: 9x - 2<br> = 11x + 5
    13·2 answers
  • Solving a system of equation <br> x+5y=15 <br> -3x+2y=6
    9·1 answer
  • Which number is rational , an integer , and a real number ?
    8·2 answers
  • It takes 0.25 cup of sugar to make a batch of chocolate chip cookies. I have 5.50 cups of sugar. How many batches of cookies can
    6·2 answers
  • How to divide fractions
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!