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2 years ago

What is the property of yx7=7y

Mathematics

1 answer:

Artyom0805 [142]2 years ago

5 0

Answer:

This is the commutative property of multiplication.

Step-by-step explanation:

This property states that we can multiply numbers in any order and still get the same number. Each side is the same operation in a different order.

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Please show work and will give Brainliest!!!!

Tpy6a [65]

Answer:

y + 9 = -0.4(x-7)

Step-by-step explanation:

in slope form , we will use y - y1 =m ( x - x1) ,

which will be y + 9 = -2/5(x-7) ,

in reduced form , we have y + 9 = -0.4(x-7)

6 0

2 years ago

Write a system of linear equations that has the ordered pair (1,4) as it's solition

Lemur [1.5K]

The required system of equations is $x+y=5\\x-y=-3$

Step-by-step explanation:

We need to write a system of linear equations that has the ordered pair (1,4) as it's solution.

It means we need to find system of linear equations, which after being solved gives x=1 and y=4

Let the system of equations be:

$x+y=5\\x-y=-3$

I have made equations such that adding x+y gives 5 i,e (1+4=5) and subtracting x-y gives -3 (1-4=-3)

Now solving this system of equations to find value of x:

$x+y=5\,\,eq(1)\\x-y=-3\,\,eq(2)$

Adding eq(1) and eq(2)

$x+y=5\\x-y=-3\\-----\\2x=2\\x=1$

Putting value of x=1 into eq(1) to find value of y

$x+y=5\\1+y=5\\y=5-1\\y=4$

The solution set after solving system of equations is (1,4).

The required system of equations is $x+y=5\\x-y=-3$

Keywords: System of equations

Learn more about system of equations at:

#learnwithBrainly

7 0

2 years ago

Solve 10a-5b=25 for b

devlian [24]

   10a - 5b = 25
10a - 10a - 5b = 25 - 10a
   -5b = -10a + 25
      -5 -5
      b = 2a - 5

6 0

2 years ago

Solve the system of linear equations by using the substitution method. Write your answer as a coordinate/point. (20 points)

Inessa [10]

Answer:

(1,10)

Step-by-step explanation:

Substitute the value of y so you get -5x+15=-2x+12. Then solve you get x=1. Substitute x as 1 in the equation y=-2x+12 so you get y=10

8 0

1 year ago

For which value of k is the equation below true 4,522,800,000=4.5238x10k

Sauron [17]

Answer:

k=99977894.690

7 0

2 years ago