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
Lemur [1.5K]
3 years ago
8

Two-variable linear equations 2x – 5y = 20

Mathematics
1 answer:
Lynna [10]3 years ago
7 0
Y= (2x-20)/ 5 then you replace y so with a simple calculation u get x than u replace x with it value to get y as simple as that 
You might be interested in
Use repeated subtraction to divide 35/4
lana [24]

8.75 is the answer rrrrrr
7 0
3 years ago
Read 2 more answers
Help me with this please !!
avanturin [10]

Answer:

see explanation

Step-by-step explanation:

Under a reflection in the line y = - x

a point (x, y ) → (- y, - x ), thus

T(- 1, 3 ) → T'(- 3, 1 )

U(- 1, 10 ) → U'(- 10, 1 )

V(- 2, 4 ) → V'(- 4, 2 )

6 0
3 years ago
triangle abc is similar to triangle def. the lengths of the sides of triangle abc are 5, 8, and 11. what is the length of the sh
Natali5045456 [20]

Answer:

The shortest sides is 12.5.

Step-by-step explanation:

5 + 8 + 11 = 24

60 / 24 = 2.5

So 2.5 * 5 = 12.5

5 0
2 years ago
Determine whether a figure with the given vertices is a rectangle using the Distance Formula.
Alex Ar [27]

Answer:

Yes; Opposite sides are congruent, and diagonals are congruent.

Step-by-step explanation:

we have

A(4, -7), B(4, -2), C(0, -2), D(0, -7)

we know that

the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

step 1

Find the length of the sides

<u><em>Find the distance AB</em></u>

substitute the values

d=\sqrt{(-2+7)^{2}+(4-4)^{2}}

d=\sqrt{(5)^{2}+(0)^{2}}

AB=5\ units

<u><em>Find the distance BC</em></u>

substitute the values

d=\sqrt{(-2+2)^{2}+(0-4)^{2}}

d=\sqrt{(0)^{2}+(-4)^{2}}

BC=4\ units

<u><em>Find the distance CD</em></u>

substitute the values

d=\sqrt{(-7+2)^{2}+(0-0)^{2}}

d=\sqrt{(-5)^{2}+(0)^{2}}

CD=5\ units

<u><em>Find the distance AD</em></u>

substitute the values

d=\sqrt{(-7+7)^{2}+(0-4)^{2}}

d=\sqrt{(0)^{2}+(-4)^{2}}

AD=4\ units

Compare the length sides

AB=CD

BC=AD

therefore

Opposite sides are congruent

step 2

Find the length of the diagonals

<u><em>Find the distance AC</em></u>

substitute the values

d=\sqrt{(-2+7)^{2}+(0-4)^{2}}

d=\sqrt{(5)^{2}+(-4)^{2}}

AC=\sqrt{41}\ units

<u><em>Find the distance BD</em></u>

substitute the values

d=\sqrt{(-7+2)^{2}+(0-4)^{2}}

d=\sqrt{(-5)^{2}+(-4)^{2}}

BD=\sqrt{41}\ units

Compare the length of the diagonals

AC=BD

therefore

Diagonals are congruent

The figure is a rectangle, because Opposite sides are congruent, and diagonals are congruent

8 0
3 years ago
Read 2 more answers
Susan has 45 hats in her closet.Her friends borrowed some of the hats.Nicky borrowed 3hats.And Shelly borrowed 2 hats.If Susan d
Zina [86]

Answer:

How many closets?

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • I NEED THE ANSWER ASAP! IT'S DUE TOMORROW!! :(
    11·1 answer
  • What is a divided by 6 equal = 3
    8·2 answers
  • Kayla put 8 questions on this quiz and then shuffled them. In how many different orders can they appear?
    11·1 answer
  • If x = 3z and z=2y, then x=?
    10·1 answer
  • Is the line y = 3x – 7 parallel or perpendicular to 3x + 9y = 9? Explain your answer.
    9·1 answer
  • The sum of eight and a number is 100 what is the number?
    6·2 answers
  • how can i create a linear inequality with both a constant and a linear term on each side and that ha x&gt;7 as a solution.
    5·1 answer
  • What is 2+2•67/19•34+1
    7·2 answers
  • Simultaneous equations 5x-4y=19<br> X+2y=8
    13·1 answer
  • How do you know if a probability is significantly high or significantly low?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!