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Kisachek [45]
3 years ago
7

Perform the indicated operation. 2 1/6 – 5 2/3

Mathematics
2 answers:
REY [17]3 years ago
6 0
<span>2 1/6 – 5 2/3
=</span><span>2 1/6 – 5 4/6
= - 3 3/6
=  -3 1/2

answer
</span><span>C. -3 1/2</span>
saul85 [17]3 years ago
3 0

Answer:

Option C - 2\frac{1}{6}-5\frac{2}{3}=-3\frac{1}{2}

Step-by-step explanation:

Given : Expression 2\frac{1}{6}-5\frac{2}{3}

To find : Perform the indicated operation in the expression ?

Solution :

Expression 2\frac{1}{6}-5\frac{2}{3}

Write mixed fraction into fraction,

2\frac{1}{6}-5\frac{2}{3}=\frac{13}{6}-\frac{17}{3}

Taking Least common denominator,

2\frac{1}{6}-5\frac{2}{3}=\frac{13-34}{6}

2\frac{1}{6}-5\frac{2}{3}=-\frac{21}{6}

2\frac{1}{6}-5\frac{2}{3}=-\frac{7}{2}

Write improper fraction into mixed fraction,

2\frac{1}{6}-5\frac{2}{3}=-3\frac{1}{2}

Therefore, Option C is correct.

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siniylev [52]

Answer:

Step-by-step explanation:

tan (F)=12/5=2.40

7 0
3 years ago
Y = 3x<br><br> x + 2y = -21<br>Solve the system.  Write your answer as an ordered pair (x, y)
4vir4ik [10]
The solution is -3, good luck on anymore questions.
5 0
3 years ago
If two numbers are in the ratio 5 : 7 and if
abruzzese [7]

Answer:

25 and 35

Step-by-step explanation:

Let the numbers be 5x and 7x

(5x+5)/(7x+5)=3/4

4(5x+5)=3(7x+5)

20x+20=21x +15

20-15=21x-20x

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So,the numbers will be

5x=5*5 =25

7x=7*5=35

4 0
3 years ago
Can anyone help me solve this? Please and thank you!
AveGali [126]

It's the sum of a geometric sequence.

Let's rewrite it a bit:

\displaystyle\\\sum_{n=1}^{10}8\left(\dfrac{1}{4}\right)^{n-1}=8\sum_{n=1}^{10}\left(\dfrac{1}{4}\right)^n\cdot \left(\dfrac{1}{4}\right)^{-1}=8\sum_{n=1}^{10}\left(\dfrac{1}{4}\right)^n\cdot 4=32\sum_{n=1}^{10}\left(\dfrac{1}{4}\right)^n

And now let's calculate this sum \displaystyle \sum_{n=1}^{10}\left(\dfrac{1}{4}\right)^n:

S_n=\dfrac{a(1-r^n)}{1-r}\\\\a=\dfrac{1}{4}\\n=10\\r=\dfrac{1}{4}\\\\S_{10}=\dfrac{\dfrac{1}{4}\cdot\left(1-\left(\dfrac{1}{4}\right)^{10}\right)}{1-\dfrac{1}{4}}=\dfrac{\dfrac{1}{4}\cdot\left(1-\dfrac{1}{1048576}\right)}{\dfrac{3}{4}}=\dfrac{\dfrac{1048575}{1048576}}{3}=\dfrac{1048575}{3145728}=\\=\dfrac{349525}{1048576}

Now let's calculate the initial sum:

\displaystyle 32\cdot  \sum_{n=1}^{10}\left(\dfrac{1}{4}\right)^n=32\cdot \dfrac{349525}{1048576}=\dfrac{349525}{32768}\approx10.67

8 0
2 years ago
Answers Choices :
zzz [600]

Answer:

4 sufficient to determine GRN and WZK are not congruent

5 0
1 year ago
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