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
Ronch [10]
3 years ago
14

is (-1/2 x + 6/7) - (7/2 x - 4/7) equivalent to -4 x + 2/7 ? use the properties of operations to justify your answer

Mathematics
1 answer:
LuckyWell [14K]3 years ago
4 0

Answer:

The given equation is NOT justified.

Step-by-step explanation:

Here, the given equation is (\frac{-1}{2}x + \frac{6}{7} )  -  (\frac{7}{2}x - \frac{4}{7} )   = -4x + \frac{2}{7}

Now, here Consider the left hand side and simplifying the left side by operating on the like terms,

⇒(\frac{-1}{2}x + \frac{6}{7} )  -  (\frac{7}{2}x - \frac{4}{7} )   = \frac{-1}{2}x + \frac{6}{7}   -  \frac{7}{2}x + \frac{4}{7}  =  (\frac{-1}{2}x -\frac{7}{2}x) + (\frac{6}{7}   + \frac{4}{7})

=(\frac{-1 - 7}{2}x ) + (\frac{6 + 4}{7} ) = \frac{-8x}{2} + \frac{10}{7}   \neq -4x + \frac{2}{7}

Here, Left side of equation  ≠ Right side of the equation

Hence, (\frac{-1}{2}x + \frac{6}{7} )  -  (\frac{7}{2}x - \frac{4}{7} )   ≠ -4x + \frac{2}{7}

You might be interested in
Given the table of values, determine the base for the exponential function. x y −2 −1 0 1 1 9 2 81
IrinaK [193]

Answer:

81

Step-by-step explanation:

5 0
3 years ago
hi i'm really struggling with this and its due later today! If someone could show the work of how to do it and the answer that w
GuDViN [60]

Answer:

\frac{-5 \pm \sqrt{13} }{6}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Step-by-step explanation:

<u>Step 1: Define</u>

<u />\frac{-5 \pm \sqrt{5^2-4(3)(1)} }{2(3)}<u />

<u />

<u>Step 2: Evaluate</u>

  1. Evaluate Exponents:                    \frac{-5 \pm \sqrt{25-4(3)(1)} }{2(3)}
  2. Evaluate Multiplication:               \frac{-5 \pm \sqrt{25-12} }{6}
  3. Evaluate Subtraction:                  \frac{-5 \pm \sqrt{13} }{6}
8 0
3 years ago
Please Help
Sunny_sXe [5.5K]
Joel read the greatest number of pages in a day. 

Armando read (46×.15) 6.9 pages.
Billy read (72×.11) 7.92 pages.
Robert read (68×.12) 8.16 pages.
Joel read (69×.14) 9.66 pages.
3 0
3 years ago
Read 2 more answers
Can someone answer this
Nady [450]

Answer:

the third one from the top

Step-by-step explanation:

3 0
2 years ago
Need help what’s 7-11??
nydimaria [60]

Answer:

umm the answer to 7-11 is 69

Step-by-step explanation:

7. Always

8. sometimes

9. never

10. never

11. always

6 0
3 years ago
Other questions:
  • The number 5/9 is an example of a
    14·1 answer
  • A six-sided number cube labeled 1 through 6 is rolled 500 times. An odd number is rolled 325 times. Compare the experimental pro
    15·2 answers
  • A circle has an area of 16. What is the<br> circumference of the circle?
    10·1 answer
  • Which of the following reasons can be used to justify statement #4 in the proof?
    7·1 answer
  • I need help in determining which two whole numbers lie between?
    11·2 answers
  • Arrange the following fractions in the descending order: 2/5, 7/10, 3/2, 15/30
    9·1 answer
  • Kennedy is working two summer jobs, making $11 per hour babysitting and making $8 per hour clearing tables. In a given week, she
    14·1 answer
  • What is the perimeter?
    5·1 answer
  • Someone help a friend out please on algebra?
    14·1 answer
  • Whats the distance between the two points (-5,2) (2,-7)​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!