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
V125BC [204]
3 years ago
12

Solve the following system by any method. –8x – 8y = 0 –8x + 2y = –20

Mathematics
1 answer:
madam [21]3 years ago
8 0
This one is simple since we already have the two x variables.equal. All we have to do is subtract the equations from one another to get the answer.
So i will subtract the left side by the other left side and the right side by the other right side

-8x - 8y -(-8x + 2y) = 0 -(-20)

distribute negative sign

-8x - 8y + 8x - 2y = 0 + 20

do the math
- 10y = 20
Y = -2

plug t into an equation
-8x -8 (-2) = 0

-8x + 16 = 0
-8x = -16
x = 2
answer (2, -2)
You might be interested in
Solve the math problem
k0ka [10]

If this is an option, it should be Similar Triangles.

3 0
2 years ago
Find the area of the trapezoid to the nearest tenth.
erica [24]

Answer:

2.2 metres squared

Step-by-step explanation:

We need to find the area of this trapezoid.

The area of a trapezoid is denoted by:

A=\frac{(b_1+b_2)h}{2}, where b_1 and b_2 are the parallel bases and h is the height

Here, we already know the lengths of the two bases; they are 0.9 metres and 2.3 metres. However, we need to find the length of the height.

Notice that one of the angles is marked 45 degrees. Let's draw a perpendicular line from top endpoint of the segment labelled 0.9 to the side labelled 2.3. We now have a 45-45-90 triangle with hypotenuse 2.0 metres. As one of such a triangle's properties, we can divide 2.0 by √2 to get the length of both legs:

2.0 ÷ √2 = √2 ≈ 1.414 ≈ 1.4

Thus, the height is h = 1.4 metres. Now plug all these values we know into the equation to find the area:

A=\frac{(b_1+b_2)h}{2}

A=\frac{(0.9+2.3)*1.4}{2}=2.2

The answer is thus 2.2 metres squared.

<em>~ an aesthetics lover</em>

8 0
3 years ago
What is the x-intercept of y=40x+70
AysviL [449]
At th x-intercept y=o

∴40x + 70 = 0
  40x = -70
  x = -70/40
  x = -1.75

x intercepr = (-1.75,0)
8 0
3 years ago
How many times does 218 goes into 16,013
Kobotan [32]

Answer:

73.45 times

Step-by-step explanation:

3 0
2 years ago
2/3 of 24 bananas is
Ghella [55]
Remember of means multiply so the answer would be 2/3*24= 16
8 0
3 years ago
Other questions:
  • You invest $2000 in an account at 4.5% per year simple interest. How much will you have in the account at the beginning of the 8
    14·2 answers
  • Please help quickly !
    15·1 answer
  • What is the value of the expression<br>(25 - 7) X 2 + 4 + 2?<br>​
    12·2 answers
  • a crew of highway workers paved 2/15 mile in 20 minutes.if they continued working at the same rate,what portion of a mile wil th
    11·1 answer
  • 1 gallon minus 1 quart 1 pint and 1 ounce?
    11·2 answers
  • The 5th term in a geometric sequence is 140. The 7th term is 35. What are the possible values of the 6th term of the sequence?
    14·1 answer
  • ABC ~ AYZ , what's the value of x?​
    6·1 answer
  • What is the solution to the proportion?  8/4=11/M Answers: A. M=3 B. M=5.5 C. M=7 D. M=22
    11·1 answer
  • Please help!!!!!!!!!
    13·1 answer
  • Find the answer to this question and answer correctly. My current answer is 75 but I am not sure if I am correct right now.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!