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
inysia [295]
2 years ago
12

1, 3x-2=5(2x+1)Please answer this question ​

Mathematics
1 answer:
Ilia_Sergeevich [38]2 years ago
6 0

Answer:

Step-by-step explanation:

3x -2=5(2x+1)

3x-2=10x+5

10x-3x=-2-5

7x=-7

x=-1

You might be interested in
For an upcoming election, 500 registered voters were surveyed on a tax increase. 43% were for a tax increase and 51% were agains
dalvyx [7]
Against a tax increase because either way the margin of error may fall, against will still have more votes
5 0
3 years ago
What does f equal in this equation? 6f-12=-4f+6
kakasveta [241]
F = 1.8 is the answer
7 0
3 years ago
Read 2 more answers
3x-2=13, seventh grade math problem.
Airida [17]
X=5 because you add 2 to 13 and divide by 3
5 0
3 years ago
Read 2 more answers
Choose the fraction that is greater than 5/9
irga5000 [103]
<h3>Answer:  Choice D)   14/23 > 5/9</h3>

===========================================

Convert each fraction shown to decimal form

  • 5/9 = 0.55555
  • 7/16 = 0.43750  
  • 8/15 = 0.53333
  • 6/11 = 0.54545
  • 14/23 = 0.60870

With the exception of 7/16 = 0.43750, the other decimal values are approximate.

From that list, we can see the decimal representations of 7/16, 8/15, and 6/11 are all smaller than the decimal version of 5/9. So we rule out choices A, B, and C. The answer must be choice D.

Sure enough, 14/23 = 0.60870 is indeed larger than 5/9 = 0.55555

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

We can show this another way:

First off, assume that 14/23 and 5/9 are equal. We'll cross multiply and show a contradiction happens

14/23 = 5/9

14*9 = 23*5

126 = 115

The contradiction happens since we should get the same value on both sides if the two sides were equal, but they're not equal.

If we replace each equal sign with a greater than sign, then we get,

14/23 > 5/9

14*9 > 23*5

126 > 115

You can think of it like working backwards up the chain.

5 0
2 years ago
Using the discriminant, determine the number of real solutions.
uranmaximum [27]

Answer:

  C.  two real solutions

Step-by-step explanation:

Your quadratic matches the form ...

  ax^2 +bx +c = 0

for the values a=2, b=7, c=-15.

The discriminant is ...

  d = b^2 -4ac

For your values of a, b, c, the discriminant value is ...

  d = 7^2 -4(2)(-15) = 169

The discriminant is positive, indicating there are two real solutions.

_____

When the discriminant is negative, there are no real solutions, only complex solutions.

When the discriminant is zero, there is one real solution.

__

This equation factors as (2x-3)(x+5) = 0 and has solutions x=3/2, x=-5.

6 0
3 years ago
Other questions:
  • Problem:
    6·1 answer
  • The number of hours that Terry, Dan, Jenny, and Lucy watch television during the week is given in the table. Using the mean as t
    14·2 answers
  • The length of a rectangle is 5t+6 and its height is t^6 , where t is time in seconds and the dimensions are in inches. Find the
    8·1 answer
  • Help pleaseeeee picture attached
    15·1 answer
  • What is the length of the hypotenuse?
    10·1 answer
  • Three interior angles of a quadrilateral have measures of 100degree,120degree, and 80 degree. Find the fourth angle measure.
    10·1 answer
  • If one supplementary angle measure 51 degrees the other angle measures 39 degrees?
    12·1 answer
  • 3x-4 or = to 7<br><br><br> plz help
    9·2 answers
  • 100 points
    7·2 answers
  • Which numbers below are odd? Check all that apply.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!