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
Lena [83]
3 years ago
11

How do you solve for x on this problem? 3x=7.5

Mathematics
2 answers:
IrinaK [193]3 years ago
8 0

Answer:X=2.5

Step-by-step explanation:

Divide both sides by 3

3 over 3 cancels out and 7.5 over 3 equals 2.5

spin [16.1K]3 years ago
6 0

Answer:

x= 2.5

Step-by-step explanation:

divide both sides by 3

You might be interested in
1.What is the shape of the graph of any quadratic function?
likoan [24]

Answer:

Inverted parabola

Two complex solution

Step-by-step explanation:

any quadratic equation can be expressed in terms of ax^2 + bx + c = 0

It has two solutions which can be found using formula X =( -b + \sqrt{b^2 -4ac} )/2a \\or  \ ( -b - \sqrt{b^2 -4ac} )/2a

We know that  for any value inside the square root function

if it is positive its solution will be real number

for example  \sqrt{9} we can have two real solution -3 and 3

if it is negative its solution will be complex number

for example  \sqrt{-9}we can have two complex solution

expressed in term of a + ib or a - ib

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

Given in the problem

we have  ax^2 - bx + c

so its solution will be

X =( -(-b) + \sqrt{b^2 -4ac} )/2a \\or  \ ( -(-b) - \sqrt{b^2 -4ac} )/2a\\\\X =( b + \sqrt{b^2 -4ac} )/2a \\or  \ ( b - \sqrt{b^2 -4ac} )/2a\\

Since in this expression it is given in problem statement that b^2 - 4ac < 0 which will be a negative number and for negative number, its square root is complex number.

also X has two values as given above it will have two solution

hence it will have two complex solution based on above discussion.

Also for any quadratic equation shape of its curve if plotted on coordinate plane is parabolic.

If it has complex solution then curve of such expression  will not pass through X axis

7 0
3 years ago
For each order. Determine weather is a solution to x = -5
Yakvenalex [24]
First number is x and second number is y
(x,y)

So first and last are correct
4 0
2 years ago
There are 20 triangles and 8 circles. What is the simplest ratio of circles to total shapes?
Rudik [331]

Answer:

5 to 2

Step-by-step explanation:

You can simplify both 20 and 8 by 4.

20/4 = 5

8/4 = 2

3 0
3 years ago
50 POINTSSSS!!!
Slav-nsk [51]

44 sq inches, i am so not sure.

3 0
3 years ago
Read 2 more answers
You have a bag of 12 marbles, 5 red, 3 green, 2 yellow &amp; 2 orange. What is the P( red, then orange) WITHOUT replacing the fi
Readme [11.4K]

Answer:

Total number of marbles = 12

P (1 red & 1 orange) =

\frac{1 + 1}{12}  \\  =  \frac{2}{12}  \\  =  \frac{1}{6}  \\  = 0.16

6 0
3 years ago
Read 2 more answers
Other questions:
  • Help please thank you
    8·1 answer
  • In a sample of 800 adults, 214 think that most celebrities are good role models. Two us adults are selected from this sample wit
    12·1 answer
  • What’s the answer ???<br> (ONLY ANSWER IF YOU KNOW)
    8·2 answers
  • Express the product of 2x^2+6x-8 and x+3 in standard form
    13·1 answer
  • Do all your work!!!!!!Please
    6·1 answer
  • Someone solve this for me please. I missed school, and my teacher won't help me.
    11·2 answers
  • I need help with this question.
    14·1 answer
  • If joe at 100 apples,subtracted them by 8 and divided them by 6 how much would joe have left?
    5·2 answers
  • Find the area of the triangle that has a base of 16 yd and a height of 9 yd.
    10·1 answer
  • What are the coordinates of point (6,-2) after D o, 1/2
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!