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Makovka662 [10]
3 years ago
10

(4, 5) and (-4, 3) What’s the answer I need help

Mathematics
1 answer:
dimulka [17.4K]3 years ago
7 0

Answer:4(3)/(5)

Step-by-step explanation:

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iris has 120 songs on her playlist each week she downloads 4 new songs. write an expression to show the total number of songs on
Leni [432]

Answer:

4 W = n of songs on her playlist

n \leqslant 120

6 0
3 years ago
How do you solve multi variable equations?​
Mekhanik [1.2K]
1. Understand what multi-variable equations are.

Two or more linear equations that are grouped together are called a system. That means that a system of linear equations is when two or more linear equations are being solved at the same time.
[1] For example:
• 8x - 3y = -3
• 5x - 2y = -1
These are two linear equations that you must solve at the same time, meaning you must use both equations to solve both equations.

2. Know that you are trying to figure out the values of the variables, or unknowns.

The answer to the linear equations problem is an ordered pair of numbers that make both of the equations true.
In the case of our example, you are trying to find out what numbers ‘x’ and ‘y’ represent that will make both of the equations true.

• In the case of this example, x = -3 and y = -7. Plug them in. 8(-3) - 3(-7) = -3. This is TRUE. 5(-3) -2(-7) = -1. This is also TRUE.

3. Know what a numerical coefficient is.

The numerical coefficient is simply the number that comes before a variable.[2] You will use these numerical coefficients when using the elimination method. In our example equations, the numerical coefficients are:

• 8 and 3 for the first equation; 5 and 2 for the second equation.


4. Understand the difference between solving with elimination and solving with substitution.

When you use elimination to solve a multivariable linear equation, you get rid of one of the variables you are working with (such as ‘x’) so that you can solve the other variable (‘y’). Once you find ‘y’, you can plug it into the equation and solve for ‘x’ (don’t worry, this will be covered in detail in Method 2).

• Substitution, on the other hand, is where you begin working with only one equation so that you can again solve for one variable. Once you solve one equation, you can plug in your findings to the other equation, effectively making one large equation out of your two smaller ones. Again, don’t worry—this will be covered in detail in Method 3.


5. Understand that there can be linear equations that have three or more variables.

Solving for three variables can actually be done in the same way that equations with two variables are solved. You can use elimination and substitution, they will just take a little longer than solving for two, but are the same process.
6 0
3 years ago
What is mila’s average swimming speed?
skad [1K]

Answer:

she swam 1500 meters in 1/4 of the time and he swam 750 in half of his time. Hope this helps

5 0
3 years ago
Can someone help me with this please???
lys-0071 [83]

Answer:

Lateral surface area would be (13*4)*2 + (4*4)*2 = (52*2) + (16*2) = 104 + 32 = 136 units^2.

Surface area would be 136 + 104 = 240 units^2.

Step-by-step explanation:

I hope this helps you!

6 0
3 years ago
Write two fractions that are equivalent to the given fraction.<br> 5/7
Reil [10]

Answer:

10/14  25/35

Step-by-step explanation:

For the first one multiply times 2

For the second one multiply times 5

4 0
3 years ago
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