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
AnnZ [28]
3 years ago
7

Solve each system of equations algebraically x-y=6 y=-1

Mathematics
2 answers:
Masteriza [31]3 years ago
7 0

Answer:

Therefore, the solution of the system of equations will be:

x=5,\:y=-1

Step-by-step explanation:

Given the system of equations

x-y=6;\:y=-1

solving

\begin{bmatrix}x-y=6\\ y=-1\end{bmatrix}

\mathrm{Subsititute\:}y=-1

\begin{bmatrix}x-\left(-1\right)=6\end{bmatrix}

\begin{bmatrix}x+1=6\end{bmatrix}

Isolate x for x+1=6

x+1=6

x=5

Therefore, the solution of the system of equations will be:

x=5,\:y=-1

kati45 [8]3 years ago
3 0

Answer:

x-(-1)=6

-x=6

-x/-1 6/-1

x=-6

You might be interested in
How many of the first 15 positive integers can be written as the sum of three squares?
Jlenok [28]

Answer

no number from the following list can be expressed as the sum of three squares: 7, 15, 23, 31, 39, 47, ect...  so only once

Step-by-step explanation:

nono dont touch me there this is my nono square

3 0
2 years ago
a top athlete sprinting has a power of 1700W the average person running has a power of 1000 W how powerful do u think you are? w
maks197457 [2]
I really dont understand what the W means... But i can definately tell you this: I am a former rythmic gymnast who trained for 5 years, and in gym, i am always first place. True facts
5 0
3 years ago
The mean of 4 numbers is 19. What would the new mean be if the number 30 is added to the data set?
german

Answer:

B 21.2

Step-by-step explanation:

Im not sure at all tho. But I hope this helps :/

8 0
2 years ago
Find the LCD 4/7 and 3/5
blsea [12.9K]
I would multiply 4/7 by 5 and 3/5 by 7 to get 20/35 and 21/35. The Least Common factor is 35
8 0
3 years ago
Help please tell me what the answer is ASAP
Amiraneli [1.4K]

Answer:

The approximated length of EF is 2.2 units ⇒ A

Step-by-step explanation:

<em>The tangent ratio in the right triangle is the ratio between the opposite side to the adjacent side of one of the acute angle in the triangle</em>

In the given figure

∵ The triangle DFE has a right angle F

∵ The opposite side to angle D is EF

∵ The adjacent side to angle D is DF

→ By using the tangent ratio above

∴ tan(∠D) = \frac{EF}{DF}

∵ DF = 6 units

∵ m∠D = 20°

→ Substitute then in the ratio above

∴ tan(20°) = \frac{EF}{6}

→ Multiply both sides by 6

∴ 6 tan(20°) = EF

∴ 2.183821406 = EF

→ Approximate it to the nearest tenth

∴ 2.2 = EF

∴ The approximated length of EF is 2.2 units

7 0
3 years ago
Other questions:
  • A bannana has 80 calories. Thus is 5 calories less than one seventh of the calories in a banana split. How many calories are in
    6·2 answers
  • Un servicio de datos para clientes móviles presenta las siguientes variantes:
    9·1 answer
  • A city doubles its size every 12 years. If the population is currently 500,000, what will the population be in 24 years?
    14·2 answers
  • Can someone explain the steps to this ? :)
    15·1 answer
  • Find the area of the sector.
    13·1 answer
  • The value of y varies directly with x. When y = 75, x = ½ . What is the value of y when x is 2 ¼ ? A. 168.75 C. 66.67 B. 16.67 D
    15·1 answer
  • Please help me please I really need help please help me
    6·2 answers
  • A robot makes
    14·1 answer
  • The question is where did they go wrong with the equation: 2(s-5)=2(s+5)
    6·1 answer
  • 12. Solve the following inequality.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!