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
kompoz [17]
3 years ago
6

What is 8 over15 plus 2 over5

Mathematics
1 answer:
svlad2 [7]3 years ago
4 0

Answer:

14/15

Step-by-step explanation:

8/15 + 3(2/5) = 8/15 + 6/15

= 14/15

You might be interested in
Find the inverse matrix or type "none". (use decimals) {11 -5 3 -1}
alexira [117]

The inverse of the matrix  \left[\begin{array}{cc}11&-5\\3&-1\end{array}\right] is the matrix \left[\begin{array}{cc}\frac{-1}{4} &\frac{5}{4} \\\\\frac{-3}{4} &\frac{11}{4} \end{array}\right] .

The inverse of a matrix A is calculated by the formula:

A' = (1/|A|)(Adj A),

where A' represents the inverse of matrix A,

|A| represents the determinant value of matrix A, and

Adj A represents the Adjoin matrix of matrix A.

So, to calculate the inverse of the matrix  \left[\begin{array}{cc}11&-5\\3&-1\end{array}\right] , we will first calculate its Adj.

Adj = \left[\begin{array}{cc}-1&-3\\5&11\end{array}\right] ^{T}= \left[\begin{array}{cc}-1&5\\-3&11\end{array}\right].

Now, we calculate |A| = 11*(-1) - (-5)*3 = -11 + 15 = 4.

Therefore A' = (1/|A|)(Adj A),

or, A' = (1/4)*\left[\begin{array}{cc}-1&5\\-3&11\end{array}\right] ,

or, A' = \left[\begin{array}{cc}\frac{-1}{4} &\frac{5}{4} \\\\\frac{-3}{4} &\frac{11}{4} \end{array}\right] .

Therefore, the inverse of the matrix  \left[\begin{array}{cc}11&-5\\3&-1\end{array}\right] is the matrix \left[\begin{array}{cc}\frac{-1}{4} &\frac{5}{4} \\\\\frac{-3}{4} &\frac{11}{4} \end{array}\right] .

Learn more about the inverse of a matrix at

brainly.com/question/16862241

#SPJ10

4 0
2 years ago
PLZ HELP ASAP SOLVE SIMMILAR TRIANGLES LAST ONE
zvonat [6]
For this case by similarity of triangles we can use the following relationship:
 (x) / (9) = (5) / (15)
 We clear the value of x:
 x = ((5) / (15)) * (9)
 Rewriting:
 x = (1/3) * (9)
 x = 3
 Answer:
 
The value of x for this case is:
 
x = 3
3 0
3 years ago
Emerson has $120. Each week, he saves an additional $15. Write a function f(x) that models the total amount of money Emerson has
Nastasia [14]

Answer:

f(x) = 120 + (15 * x)


3 0
3 years ago
Read 2 more answers
How to make a decimal a fraction
Hitman42 [59]
Thats eaasyy, you simply have to convert it!!! hope i helped
3 0
3 years ago
Read 2 more answers
Somebody please help me ? Find an angle measure given extended triangles.
djyliett [7]

Answer:

39°

Step-by-step explanation:

the answer is 39°...

3 0
3 years ago
Read 2 more answers
Other questions:
  • Each car in a sample of seven cars was tested for​ nitrogen-oxide emissions​ (in grams per​ mile), and the following results wer
    12·1 answer
  • When Teddy filled up the tank on his moped, it cost $5.03. How much gas did his moped need? Explain how you
    6·2 answers
  • Write 5,000,039 in scientific notation.
    12·1 answer
  • 10Hello, can you help me with this? How much is 5 raised to 5?​
    15·1 answer
  • If you work 37.5 hours per week at $10.65 per hour, how much is your gross pay for a two-week period? (Round off your answer to
    10·1 answer
  • Which pair shows equivalent expressions? 3 (x + 2) = 3 x + 6 3 x + 2 x = x squared (3 + 2) 3 x + 2 = 3 (x + 2) Negative 3 (2 + x
    15·2 answers
  • William and his three friends went out for lunch. The bill was $34 and they left a 15% tip. They want to split the bill equally.
    13·1 answer
  • Please please please please help
    12·1 answer
  • What is the correct form of the partial fraction decomposition for StartFraction 6 x + 7 Over (x + 2) squared EndFraction? pleas
    5·2 answers
  • The recipe requires cups of flour and teaspoons of salt
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!