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
dlinn [17]
3 years ago
5

Solve this system of equations: 2x - y = 7 5x + y = 21

Mathematics
1 answer:
JulsSmile [24]3 years ago
7 0
7x= 28 so x is 4 and y is 1.. So (4,1)
You might be interested in
A drug company claims that fewer than 1% of pills that it produces and ships fail to retain full potency after 60 days of produc
Harlamova29_29 [7]
4% of the 200 pills failed to retain full potency after 60 days.
8 0
3 years ago
What are prime numbers​
Tasya [4]

Answer:

2, 3, 5, 7 and 11 are the first few prime numbers.

Step-by-step explanation:

A prime number is a natural number greater than 1 that is not a product of two smaller natural numbers.

6 0
2 years ago
Read 2 more answers
5a − 3
Taya2010 [7]

Answer:

4.8

Step-by-step explanation:

Multiply 5*4.8 equal 21.6

5 0
3 years ago
Factorise<br>15 a^3 b - 35ab^3​
IRISSAK [1]

Answer:

15 a^3 b - 35ab^3

taking common

5ab(3a²-7b²)

8 0
2 years ago
Read 2 more answers
Use the drawing tool(s) to form the correct answer on the provided coordinate plane.
vlada-n [284]

Answer:

Step-by-step explanation:

X^2-6x+5=x^2-5x-x+5=x(x-5)-(x-5)=(x-5)(x-1)

Then we have (x-5)(x-1)=0 if x=5 or x=1.

Intersections on x are points (1,0) and (5,0), middle is (3,0).

Intersection with y is when put x=0 in equation, so you will get y=0-6*0+5, y=5. The point is (0,5).

From picture symmetry is line x=3.

7 0
3 years ago
Other questions:
  • One half of a number decreased by 16
    8·2 answers
  • I need help with this problem! Please show work so i can get credit for my work
    5·1 answer
  • Identify the value of x HELP ASAP<br>a) x=32<br>b) x=4<br>c) x=2<br>d) x=16​
    7·2 answers
  • If the function f(x)=-1/2x-7 were graphed, which of the following is true? hurry I have 10 minutes
    6·1 answer
  • What is the area, in square units, of the parallelogram shown below? A parallelogram ABCD is shown with height 7 units and base
    5·2 answers
  • Which statement correctly explains whether or not the values in the table represent a function of x
    7·1 answer
  • A variable needs to be eliminated to solve the system of equations below. Choose the
    9·1 answer
  • Taylor bought 6 tickets to a movie. The price of each ticket was the same. After he bought the tickets, his account balance show
    9·2 answers
  • Please help I found this confusing​
    13·1 answer
  • Manny bought a $1,980 snow thrower on the installment plan. The installment agreement included a 20% down payment and 12 monthly
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!