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Makovka662 [10]
3 years ago
13

1. What is the solution to the system of equations? Use the substitution method to solve the system of equations. Show all of yo

ur work!
y = x + 5
4x − 4y = −20
Mathematics
2 answers:
marin [14]3 years ago
6 0

Answer:

There are infinite solutions to this problem

Step-by-step explanation:

The equations are scale multiples of each other...

Take the first equation and subtract x from both sides...

y = x + 5    becomes

-x + y = 5

Now divide the equation by -1...

x - y = -5

Now multiply the equation by 4....

4x - 4y = -20

This is now the same as equation 2.  The lines lay on top of each other, so there are infinite points (x, y) that will solve this equation, what ever value 'x' is, 'y' will be 5 values higher

(0, 5)

(1, 6)

(5, 10)

Are some examples

IgorLugansk [536]3 years ago
5 0

Answer:

The two equations are identical, thus there are infinite number of solutions

Step-by-step explanation:

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Can someone help me fill this out....​
Jlenok [28]

Answer:

Step-by-step explanation:

First Line:

0, 1//7, 2/7, 3/7, 4/7, 5/7, 6/7, 1, 8/7, 9/7, 10/7

Second Line:

-1/3, 0, 1/3, 1/2, 1, 4/3

Third Line:

0, 1/3, 2/3, 1, 4/3, 5/3, 2

3 0
3 years ago
What is BC ? Enter your answer in the box.
omeli [17]

Answer:

Before Christ

Step-by-step explanation:

This is a historical term which is the opposite of AD(Anno Domini)

I do not know if I have spelt Anno Domini correctly but it does not matter


4 0
3 years ago
Theo is building a garden against his house. He bought two pieces of wood that are each five feet long. He wants to create a tri
liubo4ka [24]
Given:
two pieces of wood that are 5 feet long each.
form a triangle with a perimeter of a whole number.
third side the triangle will be the house 

Since two sides are already of the same length, he can create an isosceles triangle. 

An isosceles triangle has two equal sides and two equal angles.

Assuming that the 3rd side is also 5 feet long, then, he can create an equilateral triangle.

An equilateral triangle has three equal sides and three equal angles, measuring 60° each angle.
7 0
3 years ago
What is a equivalent fraction for 4/21
joja [24]
One equivalent fraction for 4/21 could be 8/42.
3 0
2 years ago
Point D is in the interior of ZABC, m ABC = 10x - 7, m_ABD = 6x + 5, and m DBC = 36. What is m ABD?
mestny [16]

Answer:

<h3>77</h3>

Step-by-step explanation:

If Point D is in the interior of <ABC, then <ABD+<BDC = <ABC

Given

<ABC = 10x - 7,

<ABD = 6x + 5

<DBC = 36

Substituting the given parameters into the formula above;

ABD+<DBC = <ABC

6x + 5+ 36 = 10x-7

6x+41 = 10x-7

collect like terms

6x-10x = -7-41

-4x = -48

divide both sides by -4

-4x/-4 = -48/-4

x = 12

To get <ABD, we will substitute x = 12 into the expression <ABD = 6x + 5

<ABD = 6(12)+5

<ABD = 72+5

<ABD =77

Hence the value of <ABD is 77

5 0
3 years ago
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