3. Error Analysis Isabel says that the equation x - 2 = -(x - 2) has nosolution because a number can never be equal to its opposite. Explain the
error Isabel made
Answers
Given:
The equation is
Isabel says that the given equation has no solution because a number can never be equal to its opposite.
To find:
Isabel's mistake.
Solution:
Her reason "a number can never be equal to its opposite" is not correct.
Zero is a number that can be equal to its opposite.
So, the given equation has solution for which LHS=RHS=0.
We have,
Add x and 2 on both sides.
Divide both sides by 2.
So, the given equation has a solution x=2.
Related Questions
Find the value of the variable. 66322943
I need helllppppppllsssss
From a group of 12 students, we want to select a random sample of 4 students to serve on a university committee. How many different random samples of 4 students can be selected?
The multiplicative inverse of – 1 in the set {-1,1}is
Answers
Yes because one input (number of pounds of banana) will always have the same output (cost).
Answer:
True. This isn't really a question but it is a statement
Step-by-step explanation:
1 pound 80 cents
2 pounds 1.60
3 pounds 2.40
and so on
Answers
The median, mean, range and mode will be 6, 5.4, 9 and 7.
The median is the number in the middle when arranged in an ascending order. The numbers will be:
0, 3, 4, 6, 6, 7, 7, 7, 9.
The median is 6.
The range is the difference between the highest and lowest number which is: = 9 - 0 = 9
The mode is the number that appears most which is 7.
The mean will be the average which will be:
= (0 + 3 + 4 + 6 + 6 + 7 + 7 + 7 + 9) / 9.
= 49/9
= 5.4
Read related link on:
Answer:
median=order them and find the middle=6
mean=add them all up and divide by the amount of numbers=(3+6+9+7+4+6+7+0 +7)/9=5.4
range= the difference between the smallest and largest number=9-3=6
mode= the one that appears the most= 7
3). what is 5 3/10 minus 2/5
4). For the school's inframurals a group of student prepared 23 1/12 liters of lemonade to sell at the end of the day they had 3 5/8 liters left over. how many liters of lemonade were sold?
5). my mother brought 3 3/4 kg of beef
2 3/5 kg of pork and 5 1/2 kg of chicken how many kilo grams of meat did she buy
Answers
Step-by-step explanation:
1) 3/5 + 2/5 = 5/5 or 1
2) to do this problem you need to make the denominators the same
(2/3)4 (1/4)3 8/12- 3/12. = 5/12
3)likewise here, you only have to change one denomimator
5 3/10 - (2/5)2
5 3/10 - 4/10
now to make this easiee for myself I prefer to make it a mixed number so 5(10)+ 3 = 53/10
53/10 - 4/10 = 49/10 then we convert this back to a mixed number and thus
5 3/10 - 2/5 = 4 9/10
4) 23 (1/12)2 - x = (3 5/8)3
23 2/24 - x = 3 15/24
- 3 15/24 +x = -3 15/24 + x
19 21/24 = x
simplify 19 7/8 liters sold
5) 3 3/4 + 2 3/5 + 5 1/2 = 11 17/20
$22.40. If they leave a 15%
tip, how much is the tip?
Answers
The tip is $3.36
22.40*.15= 3.36
Answers
Answer:
504.999...
Step-by-step explanation:
505 rounds to 510, but a number that is infinitessimally smaller rounds to 500.
Unfortunately, for any number you can write that rounds to 500, there are an infinite number of numbers that are greater and still less than 505.
In short, there is no "greatest number" that is less than 505—unless you put additional restrictions on it, like the number of digits that can be used to express it, for example.
Answers
xCy = x! / (x-y)! y!
! means factorial
(28 x 27 x 26...x 3 x 2 x 1)/(14 x 13 x 12...x 3 x 2 x 1)(14 x 13 x 12...x 3 x 2 x 1) = 40116600