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
ale4655 [162]
3 years ago
7

Solve the system. x+3y= 22 2x -y=2 (7,5) (2,2) (4,6) no solution

Mathematics
1 answer:
kirill115 [55]3 years ago
7 0

Answer:

x = 4 , y = 6

Step-by-step explanation:

Solve the following system:

{x + 3 y = 22 | (equation 1)

2 x - y = 2 | (equation 2)

Swap equation 1 with equation 2:

{2 x - y = 2 | (equation 1)

x + 3 y = 22 | (equation 2)

Subtract 1/2 × (equation 1) from equation 2:

{2 x - y = 2 | (equation 1)

0 x+(7 y)/2 = 21 | (equation 2)

Multiply equation 2 by 2/7:

{2 x - y = 2 | (equation 1)

0 x+y = 6 | (equation 2)

Add equation 2 to equation 1:

{2 x+0 y = 8 | (equation 1)

0 x+y = 6 | (equation 2)

Divide equation 1 by 2:

{x+0 y = 4 | (equation 1)

0 x+y = 6 | (equation 2)

Collect results:

Answer: {x = 4 , y = 6

You might be interested in
F(x)= 2x^2 + k/x point of inflection at x=-1 then value of k is
Nady [450]
I think it isss 2 :)))
4 0
3 years ago
Someone help me with this question please.
grandymaker [24]
It’s 27 because u multiple the first 2 number and it’s a negative then add the rest to it
5 0
3 years ago
The first three terms of a sequence are given .Round to the nearest thousand (if necessary) 13,22,31, find the 31st term
Lilit [14]

Answer

The sum of this sequence is  66

8 0
3 years ago
Kaylee decided to donate 30% of her savings if she has $238 in her savings account about how much will she Donate
skelet666 [1.2K]

Answer:

$71.40

Step-by-step explanation:

Turn the percentage 30 to a decimal, which is 0.3 then multiply it by 238 to get 71.4

5 0
3 years ago
Help with number 7!! You don’t have to do it but how do you do the problem??
musickatia [10]
80 * 5/8 will give you how many are thoroughbreds. 

80 * 5/8 = 50

Now subtract this from all of the horses. 

80 - 50 = 30. 

There are 30 quarter horses. 

OR If 5/8 of the horses are thoroughbreds, then 3/8 are quarter horses.

80 * 3/8 = 30. 
6 0
3 years ago
Read 2 more answers
Other questions:
  • A clothing store is having a sale on T-shirts. The first T-shirt you buy costs
    13·1 answer
  • Drag numbers to the table so it shows a proportional relationship between x and y.
    13·2 answers
  • the pool director has a list of 123 students who have signed up for swimming lessons. the pool director can register 7 students
    8·2 answers
  • An 8-sided fair die is rolled twice and the product of the two numbers obtained when the die is rolled two times is calculated.
    7·1 answer
  • Item 18 You and your friend are standing back-to-back. Your friend runs 20 feet forward and then 15 feet right. At the same time
    14·2 answers
  • A commercial building has seven levels of car parking spaces. Each level has four rows and each row has 38 car spaces. How many
    12·1 answer
  • Please answer this question !! BRAINLIEST !!
    6·1 answer
  • 5=97 find 2 and 4....................,,..,...
    8·1 answer
  • Activity
    12·2 answers
  • The temperature at 1:00 p.m. The temperature at 1:00 p.m. on Tuesday was -13°C. There was an increase of 6º per
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!