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
RSB [31]
2 years ago
14

Solve {2x — y = 13; 3x + y = 12

Mathematics
1 answer:
Morgarella [4.7K]2 years ago
8 0

Answer:

{x,y}={5,-3}

Step-by-step explanation:

You might be interested in
Can a triangle be formed by 7.4 cm , 8.1 cm , 9.8 cm
kompoz [17]
No all sides are equal
3 0
3 years ago
The hypotenuse of a right triangle is 1m longer than twice one of the other two sides. The third side of the triangle is 15m. Fi
Dimas [21]

Let the length of unknown side be x

So, hypotenuse = 2x + 1

By pythagorean theorem ie , a² = b² + c²

(2x + 1)² = x² + 15²

4x² + 1 + 4x = x² + 225

3x² + 4x -224

(3x +28)(x-8)

x = -9.33 , 8

Since, length can't be negative

x = 8

∴Unknown side length = 8 m

Length of hypotenuse = 2 x 8 + 1 = 17 m

Hope it helps now.

4 0
3 years ago
Read 2 more answers
Please answer all of these
FromTheMoon [43]
What’s the questions
7 0
3 years ago
Read 2 more answers
Nicholas can make 6 cupcakes (the y value) with one cup of
masya89 [10]
36 cupcakes if one cup of flour is 6 cupcakes you multiply the amount of flour by 6
4 0
3 years ago
Work out the exact value of (3/4)^-3
Yuki888 [10]

Answer:

About 2.37

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Write a situation that can be represented by the expression 3a+6 where a=age in years
    15·1 answer
  • THE PICTURE IS BELOW DOES ANYBODY KNOW THIS!!
    14·1 answer
  • If f(x) = 3x - 4 and g(x) = x + 5, then find f(x) - g(x).
    5·2 answers
  • Someone please help!
    10·2 answers
  • A bakery has dozen whole-grain
    6·2 answers
  • A goalie makes 28 saves in 4 games what is the unit rate saves per game?
    12·1 answer
  • T=2p squared make p the subject
    6·1 answer
  • The Travers are adding a new room to their house. The room will be a cube with volume
    7·1 answer
  • 7) What is the area of the figure below?<br> 12 cm<br> 13 cm<br> 20 cm<br> 21 cm
    15·1 answer
  • Triangle \triangle A'B'C'△A
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!