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
Dmitry_Shevchenko [17]
2 years ago
5

Ivory says that the equation 2x+2=x+1 has no solution because the left-hand side is double the right-hand side. Is Ivory Correct

?
Mathematics
1 answer:
lorasvet [3.4K]2 years ago
8 0

Answer:

No, Ivory is incorrect. The equation does have a solution, and the solution is x = -1.

Step-by-step explanation:

We try to solve the equation first.

2x + 2 = x + 1

We want all variables on the left side and all numbers on the right side.

Subtract x from both sides.

x + 2 = 1

Subtract 2 from both sides.

x = -1

Check: Plug in -1 for x on both sides and see if it makes a true statement.

2x + 2 = x + 1

2(-1) + 2 = -1 + 1

-2 + 2 = 0

0 = 0

0 = 0 is a true statement, so the solution x = -1 is the correct solution.

Answer: Ivory is incorrect. The equation does have a solution, and the solution is x = -1.

You might be interested in
If 55% is 70.4 so what is hundred percent​
hodyreva [135]

Answer:

55%=70.4

1%=70.4/55= 1.28

100%=1.28into 100 = 128

8 0
2 years ago
Lunch break: In a recent survey of 655 working Americans ages 25-34, the average weekly amount spent on lunch was $43.5
Inga [223]

Using the Empirical Rule, it is found that:

  • a) Approximately 99.7% of the amounts are between $35.26 and $51.88.
  • b) Approximately 95% of the amounts are between $38.03 and $49.11.
  • c) Approximately 68% of the amounts fall between $40.73 and $46.27.

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

The Empirical Rule states that, in a <em>bell-shaped </em>distribution:

  • Approximately 68% of the measures are within 1 standard deviation of the mean.
  • Approximately 95% of the measures are within 2 standard deviations of the mean.
  • Approximately 99.7% of the measures are within 3 standard deviations of the mean.

-----------

Item a:

43.5 - 3(2.77) = 35.26

43.5 + 3(2.77) = 51.88

Within <em>3 standard deviations of the mean</em>, thus, approximately 99.7%.

-----------

Item b:

43.5 - 2(2.77) = 38.03

43.5 + 2(2.77) = 49.11

Within 2<em> standard deviations of the mean</em>, thus, approximately 95%.

-----------

Item c:

  • 68% is within 1 standard deviation of the mean, so:

43.5 - 2.77 = 40.73

43.5 + 2.77 = 46.27

Approximately 68% of the amounts fall between $40.73 and $46.27.

A similar problem is given at brainly.com/question/15967965

8 0
2 years ago
Read 2 more answers
Multiplying and Dividing Rational Expressions<br> What is the product?
PolarNik [594]

rational numbers are always negative when u add irrational numbersStep-by-step explanation:

4 0
3 years ago
There are 35 tables at the wedding. The tables can be lined up in equal-sized rows. Which list shows all the possibilities for t
labwork [276]

Answer:

3 rows

Step-by-step explanation: because 3

4 0
3 years ago
Read 2 more answers
18. Find two numbers whose L.C.M is 3965 and G.C.F is 61​
Artist 52 [7]

Answer:

305 and 793

Step-by-step explanation:

LCM * HCF = product

3965 * 61 = 241,865 = 5*13*61*61

HCF = 61 so

61*5 = 305

61 * 13 = 793

6 0
1 year ago
Other questions:
  • What is 6 times 2/3 (two thirds)?
    12·2 answers
  • the happy play chargers $30 per hour for parties. Make a table of ordered pairs in which the x coordinate represents hours and t
    8·1 answer
  • What is the value of x? <br> enter your answer in the box
    9·2 answers
  • If t x 3/15 = 3/4, what is t.​ Please help! it's due tomorrow for a grade!
    5·1 answer
  • Which is equivalent to One-fourth x? StartFraction 1 over 8 EndFraction x + StartFraction 1 over 8 EndFraction x StartFraction 1
    13·2 answers
  • In equilateral ∆ABC, points M, P, and K belong to AB , BC , and AC respectively and AM:MB = BP:PC = CK:KA = 1:3. Prove that ∆MPK
    9·1 answer
  • X 2 + 6x + 8 = 0 Final answer: x = x = ____
    5·1 answer
  • 1/). Help ASAP Find the area of each circle to the nearest tenth
    7·1 answer
  • Please help me :)<br> I need help
    5·2 answers
  • Find the Retail Price. Given: Original Price: $60; Markup: 18%
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!