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
Vika [28.1K]
3 years ago
5

Help! given 2(x-9)=-10 prove x=4 with statements and reasons

Mathematics
1 answer:
Sedbober [7]3 years ago
8 0

Step-by-step explanation:

<u>Proof:</u>

<em>2</em><em> </em><em>(</em><em> </em><em>x </em><em>-</em><em> </em><em>9</em><em>)</em><em> </em><em>=</em><em> </em><em>-</em><em> </em><em>1</em><em>0</em><em> </em><em> </em><em>when </em><em>x </em><em>=</em><em> </em><em>4</em>

<em>2</em><em> </em><em>(</em><em> </em><em>4</em><em> </em><em>-</em><em> </em><em>9</em><em>)</em><em> </em><em>=</em><em> </em><em>-</em><em>1</em><em>0</em>

<em>8</em><em> </em><em>-</em><em> </em><em>1</em><em>8</em><em> </em><em>=</em><em> </em><em>-</em><em>1</em><em>0</em>

<em><u>-</u></em><em><u>1</u></em><em><u>0</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u> </u></em><em><u>-</u></em><em><u>1</u></em><em><u>0</u></em><em><u> </u></em>..........hence proven

<u>Reasons </u>

- When you replace X with 4, you can clearly see that the equation is equal to -10.

sorry I couldn't answer accurately, but I hope this helps

You might be interested in
A car drives 50 miles in 40 minutes. how many miles does the car travel per minute
Anarel [89]
50 divided by 40 equals 1.25! So the car is going 1.25 mph
7 0
3 years ago
Paul and Art are going to start a business selling fresh vegetables in their neighborhood. They
bearhunter [10]

The system of 5x + 2y ≤ 25 is given by 20x + 15y ≤ 120 and 5x + 2y ≤ 25

<h3>Equation</h3>

An equation is an expression used to show the relationship between two or more variables and numbers.

Let x represent the cucumber and y represent the amount of carrots, hence:

20x + 15y = 2(60)

20x + 15y ≤ 120  (1)

Also:

5x + 2y ≤ 25 (2)

The system of 5x + 2y ≤ 25 is given by 20x + 15y ≤ 120 and 5x + 2y ≤ 25

find out more on Equation at: brainly.com/question/2972832

5 0
2 years ago
An isotope decays at a rate of -0.0049% per year. Find the half life. (show the work)
cricket20 [7]

Answer:

  14,146 years

Step-by-step explanation:

The annual multiplier is (1 -0.0049%) = 0.999951. We want to find the number of times this needs to be multiplied to make the product 1/2.

  0.5 = 0.999951^t

  log(0.5) = t·log(0.999951)

  log(0.5)/log(0.999951) = t ≈ 14,145.514

The half-life is about 14,146 years.

7 0
3 years ago
Find the L.C.M of 4, 8 and 12 by listing the first six multiples of each number.
Marrrta [24]

Answer: 24

4: 4,8,12,16,20,24

8: 8,16,24,32,40,48

12: 12,24,36,48,60,72

3 0
3 years ago
Read 2 more answers
Explain how to subtract 247 from 538
Vladimir79 [104]
8-7=1 3-4=1 5-2=3  So it is 311.
4 0
3 years ago
Other questions:
  • 48 c equal how many qt ?
    5·1 answer
  • F = {(1, 4), (2, 3), (5, 8), (4, 7)}<br> F-1 is a function.<br> True<br> False
    11·1 answer
  • MATH HELP ME ASAP!!!!
    12·1 answer
  • Which is the equation of a line that has a slope of 5 and passes through point (2, -3)?
    13·1 answer
  • 2x(x^4-x^2-6) what is the answer to this when foiled?
    12·1 answer
  • Solve by Elimination: <br> 4x - 5y = 14<br> -4x + y = 6
    15·1 answer
  • Please help ill mark brainliest ✅✅✅✅
    7·1 answer
  • A scatter plot is made to model the number of calories in different portions of fish sticks. The data used for the scatter plot
    10·2 answers
  • Helpp!......PLEACE.......
    10·1 answer
  • Please help, this is due by 2:18pm est​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!