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
Natalija [7]
2 years ago
6

Solve the system of linear equations using elimination. -5x + 3y = -19 -x – 3y = -11

Mathematics
2 answers:
coldgirl [10]2 years ago
8 0
3z=5.-x3y-z=-3.2x=6 there you go
Ierofanga [76]2 years ago
8 0

What the first person said

You might be interested in
Evaluate u+ xy for u=9, x=9, y=7
Bad White [126]
U+xy
On replacing for u, x and y.
=9+9*7
=9+63
=72

5 0
2 years ago
What are the solutions to the quadratic function. f(x) = x^2+4x-12
Rudiy27

Answer:

2, -6

Step-by-step explanation:

x^2 + 4x - 12

A = 1

B = 4

C = -12

i used the "X" method to solve for the solutions. i think it's easier than using the quadratic formula but it doesn't always work

for the "X" method you have to multiply your A value and your C value together so 1 x (-12) = -12. that is going to be the top part of the X

the bottom part of the x will be your B value which is 4

we have to find multiples of -12 that will also add to 4

so -2 and 6 multiply to -12 but also add to 4 so we know these numbers will work

i added added two drawings to show how i found the solutions using the "X" method and the quadratic formula

5 0
2 years ago
Read 2 more answers
Consider the problem of distributing 10 distinct books among three different people with each person getting at least one book.
kakasveta [241]

The strategy used is not well, because it becomes very complex and very difficult to calculate the ways, it would play one by one, that is, despite making sense, the last part of the way to distribute the books how is it obtained? why would it be like this?

There is a much more effective way of solving the problem, and that is to divide it by cases.

Case 1:

Choose four books from the 10 available books and give them to the first student

Then choose three books from the remaining six books and give them to the second student.

Finally, give the remaining three books to the last student

Case 2:

Choose three books from the 10 available books and give them to the first student

Then choose four books from the remaining seven books and give them to the second student.

Finally, give the remaining three books to the last student

Case 3:

Choose three books from the 10 available books and give them to the first student

Then choose three books from the remaining seven books and give them to the second student.

Lastly, give the remaining four books to the last student

First it is to calculate the number number in each case by means of combinations, multiply the options per case and then add the final value in each case.

6 0
3 years ago
4. (10 pts) A study is conducted to estimate the difference in the mean occupational exposure to radioactivity in computer scien
IceJOKER [234]

Answer:

ddd

Step-by-step explanation:

5 0
2 years ago
You deposit $5000 in an account earning 7.5% simple interest. How long will it take for the balance of the account to be $6500?
salantis [7]
Hi there! So, the simple interest is 7.5% annually. Let’s multiply by initial amount by the interest rate. 5,000 * 7.5% is 375. You earn $375 in interest annually. The difference of 6,500 and 5,000 is 1,500. Let’s divide by 375 to see how many times it goes into 1,500. 1,500/375 is 4. It will take 4 years for the balance of the account to be $6,500.
4 0
3 years ago
Other questions:
  • Find the sum of the first 6 terms in the sequence -5 -25 -125 -625
    5·1 answer
  • there are 4 red balls, 6 white balls, and 3 blue balls in a bag. if one ball is drawn from from the bag at random. what time is
    13·2 answers
  • Jerome ran 3.2 miles. How many feet did Jerome run?
    13·2 answers
  • Help anyone? I've been trying to go through the lessons again and i can't figure this one out.
    6·1 answer
  • Chevy has some yarn that he wants to use to make hats and scarves. Each hat uses 0.20.20, point, 2 kilograms of yarn and each sc
    13·1 answer
  • Please help! Find the equation of the line (graph provided in attached picture) Use exact numbers. y =_ x+_ ( _ represent blanks
    11·1 answer
  • The question says make each row of fractions equal by writing a number in each box
    14·1 answer
  • What is the equation of the graph
    6·2 answers
  • What graph below shows the solution for the linear inequality y ≥ -1/3x+1?
    8·2 answers
  • Math homework !! <br> pls help , it’s due in 10 min :(( <br> question 1: a , b , c, d
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!