What is the answer to this.
2 1/3 + 3 1/4
Answers
2 1/3 = 3 + 3 + 1 /3 = 7/3
3 1/4 = 4 + 4 + 4 + 1 /4 = 13/4
Then you make a common denominator
7/3 + 13/4 = x/12 + y/12
13 x 3 = x, and 7 x 4 = y ( do cross multiplication)
39/12 + 28/12 = 67/12 ( answer in improper fraction)
67/12 = 12 + 12 + 12 + 12 + 12 + 7
5 7/12 is your answer in mixed fraction
hope this helps
1. First, you have to find a common denominator... 12
- 3: 3, 6, 9, 12, 15...
- 4: 4, 8, 12, 16, 20...
- Both have an LCM as 12, so that is the common denominator.
2. Second, you make the fractions equivalent to when the denominator is 12...
- 1/3 x 4 = 4/12
- 1/4 x 3 = 3/12
3. Lastly, add...
- 2 4/12 + 3 3/12 = 5 7/12
Hope this helped! :)
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xe^-x+7e^-x=0
Answers
Answer:
x=-7
Step-by-step explanation:
xe^-x+7e^-x=0
factor out the e^-x
e^-x(x+7)=0
e^-x=0, x+7=0
-x=ln(0), x=0-7=-7,
since ln(0) is undefined,
the only solution is -7.
1
ā
s)
Can someone help me learn this. I dot understand how and im behind. Will give brainliest!
Answers
Answer:
s = 2
Step-by-step explanation:
6s - 4 = 8
Additive inverse of (-4) is 4. So, add 4 to both the sides
6s - 4 + 4 = 8 + 4
6s = 12
Now divide both the sides by 6.
s = 2
Answer:
5
Step-by-step explanation:
just know its 5
12C5
Answers
C(n,r) = n! / ( r! (n - r)! )
n = (set)
r = (subset)
Answer:
C(n,r) =
C(12,5) =
12! / (5! (12 - 5)!) = 792
Answers
Answer:
He left with $2.786.
Step-by-step explanation:
Consider the provided information.
Ken spent 1/5 of his allowance on a movie, 3/8 on snacks, and 2/7 on games.
It is given that his allowance was $20.
The money spent on movie is:
He spent $4 for movie.
The money spent on snacks is:
He spent $7.5 for movie.
The money spent on games is:
He spent $5.714 for movie.
Subtract the money spent from total allowance as shown:
Hence, he left with $2.786.
3/8 of 16 is $7.50. So, 16-7.50= $8.50 remaining
2/7 of 8.5 is $2.43. So, 8.50-2.43 is $6.07
Answer: $6.07 is the amount ken has remaining
Answers
1+18
2+17
3+16
4+15
5+14
6+13
7+12
8+11
9+10
Answers
Answer:
13 questions :3
Step-by-step explanation:
Answer:13
Step-by-step explanation:
simple math