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
QveST [7]
2 years ago
11

5) What is

Mathematics
1 answer:
Lera25 [3.4K]2 years ago
8 0

Answer:

x= -2, y=2

Step-by-step explanation:

these are two equations in two unknown variables .. when we find these equations, we do some operations like sum of two equations so here, we will sum the two equation

-5x-y=8

+

5x-3y=-16

__________

0x - 4y = -8

then we have an equation for one unknown variable and it is y, we will divide the equation over the factor of y which is -4

\frac{-4y}{-4}=\frac{-8}{-4}

and we find that y = 2

we will not stop and we will go find the value of x by put y = 2 in any of the two equations because both of them will give us the same solution of x

I chose to put y = 2 in the first equation to be like -5X - 2 = 8

-5X = 8+2

-5X = 10 ( we will divide the equation over the factor of x (-5) )

X = -2

You might be interested in
A trip from nyc to seattle is 2;852.1 miles . A family want to make the drive in 10 days
stepan [7]
You would do 2,852.1÷10=285.21 miles a day
8 0
3 years ago
35y + 14y =<br> please i need help with this asap.
dimaraw [331]

Answer: 35y + 14y = 49y

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Let B1W2 denote the outcome that the first ball drawn is B1 and the second ball drawn is W2. Because the first ball is replaced
Sati [7]

Answer:

\{B_1B_1, B_1B_2, B_1W_1, B_1W_2, B_1W_3, \\B_2B_1, B_2B_2, B_2W_1, B_2W_2, B_2W_3, \\

W_1B_1,W_1B_2, W_1W_1, W_1W_2, W_1W_3, \\W_2B_1, W_2B_2, W_2W_1,W_2W_2, W_2W_3, \\W_3B_1, W_3B_2, W_3W_1, W_3W_2, W_3W_3\}

Step-by-step explanation:

\text{If an urn contains two blue balls} (denoted \:B_1 \:and \:B_2) \text{and three white balls},(denoted \:W_1, W_2, \:and\: W_3)

If One ball is drawn, its color is recorded, and it is replaced in the urn. Then another ball is drawn and  its color is recorded.

The 25 Possible outcomes of this experiment are listed below:

\{B_1B_1, B_1B_2, B_1W_1, B_1W_2, B_1W_3, \\B_2B_1, B_2B_2, B_2W_1, B_2W_2, B_2W_3, \\

W_1B_1,W_1B_2, W_1W_1, W_1W_2, W_1W_3, \\W_2B_1, W_2B_2, W_2W_1,W_2W_2, W_2W_3, \\W_3B_1, W_3B_2, W_3W_1, W_3W_2, W_3W_3\}

The tree diagram of this event is also attached.

6 0
3 years ago
By 8:00 a.m., the snack bar had made $3,256 in sales. By noon, the snack bar’s total sales were $8,821. On average, how much mon
dimulka [17.4K]
8821 - 3256 = 5565....amount made between 8 a.m. and noon
8 a.m. to 12: a.m. = 4 hrs

5565 / 4 = 1391.25 <=== what they took in each hr between 8 and noon
3 0
3 years ago
Read 2 more answers
The floor of a rectangular room is 300 cm long and 180 cm wide. to carpet the floor? How many small tiles are needed​
Vinvika [58]

The number of small tiles are needed​ is 300 tiles.

<h3>Number of tiles needed</h3>

Using area of rectangular formula

Area of the room = length(l) × breadth (b)

Area of the room=300 cm×180 cm

Area of the room=54,000 cm²

Number of tiles needed = Area of rectangular region / Area of one tile

Number of tiles needed=54,000/180

Number of tiles needed=300 tiles

Therefore the number of small tiles are needed​ is 300 tiles.

Learn more about number of tiles needed here:brainly.com/question/2136390

#SPJ1

4 0
2 years ago
Other questions:
  • Prove that there are infinitely many primes of the form 4k + 3, where k is a non-negative integer. [Hint: Suppose that there are
    14·2 answers
  • Find the simple interest on $500 at 6% for one year
    9·1 answer
  • -18 (-3) answer explain
    15·1 answer
  • Find the equation of the inverse.<br> f(x)=3x-4<br> Please show work
    8·2 answers
  • What is true of the function g(x)=-2x^2+5?
    8·1 answer
  • Which triangle would be impossible to create?
    9·2 answers
  • Adam used 1072.4 gallons of water over the course of 7 days. How much water did Adam use, on average, each day?
    10·1 answer
  • PLZZZ HELP ME I BEG U I WILL GIVE BRANILY
    12·1 answer
  • Which values could be the values of x and y? ​
    10·1 answer
  • a scale drawing of a movie screen is 21 inches long and 9 inches tall. The actual screen is 30 ft tall. Find the perimeter of th
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!