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
Burka [1]
3 years ago
11

15. 3x – 4y = -1 5x + 2y = 7

Mathematics
1 answer:
never [62]3 years ago
8 0

Answer:

x = 1, y = 1

Step-by-step explanation:

3x - 4y = -1

5x + 2y = 7

If we multiply the whole second equation by 2, we get:

10x + 4y = 14

Adding this to the first equation:

10x + 4y + 3x - 4y = 14 - 1

13x = 13

x = 1

Applying this to the second equation:

5 (1) + 2y = 7

2y = 2

y = 1

You might be interested in
4a - 2b = 10<br> write down the value of 2b-4a
Kisachek [45]

Answer:I think 11 will be the answer

6 0
3 years ago
A polynomial function that has roots 1 and 3 + i. The complex conjugates theorem states that must also be a (blank) root.
m_a_m_a [10]

Complex roots come in pairs

if you have a root of 3+i  you must have a root of 3-i

6 0
3 years ago
Read 2 more answers
Giving brainlist so plzzz help i really need help and im stuck
kow [346]

Answer:

0 is unlikely.

Step-by-step explanation:

0 indicates an unlikely event,

a probability around 1/2 indicates unlikely nor likely,

probability near 1 indicates a likely event.

Im sorry I tried

3 0
3 years ago
Read 2 more answers
When combining do u add or multiplty
Butoxors [25]
I think adding because ur adding the two things together 
6 0
4 years ago
Read 2 more answers
There are at most 36 red and blue marbles in a bag. the number of red marbles in twice the number of blue marbles. Write and sol
Mila [183]

Do 36 times 2 and you should get the answer for red marbles or... Mainly the  answer is 72... Your welcome...!!!

3 0
3 years ago
Other questions:
  • Answer and explain.This is a maths question.
    15·1 answer
  • How can the associative property be used to mentally solve 48+82?
    13·1 answer
  • Angela uses 2/3cup of strawberries to make 5/6 of a liter of smoothie. What is the unit rate in cups of strawberries per liter o
    12·1 answer
  • Which properties justify the steps taken to solve the system? {3x−4y=9 2x+8y=6 Drag the answers into the boxes to match each ste
    9·2 answers
  • What is 2 + 2? It's important.
    12·2 answers
  • Which two values of x satisfy the equation square root 3-2cos x = 2?
    10·1 answer
  • Can someone please help!!!!
    14·1 answer
  • 12 Jana is writing a report about wages.
    14·1 answer
  • Vic has 3 pairs of pants: brown, black, and gray. He has 3 dress shirts: white, black, and stripped. He can also wear a green or
    12·1 answer
  • Write a real world problem that can be presented by the equation y + 20 = 85
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!