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IRINA_888 [86]
2 years ago
5

Solve using any method 4x-y=20 and -2x-2y=10

Mathematics
2 answers:
dsp732 years ago
7 0

Answer:

if you're trying to find the slope, it is (3, -8) were you looking for the slope?

Step-by-step explanation:

i hope this helps, have a great day:)

Ivahew [28]2 years ago
7 0

Answer: the answer is x =3, y = -8

Step-by-step explanation:

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These tables show equivalent ratios. The value missing in each table is replaced with X. Choose ALL tables in which 12 replaces
marishachu [46]

Answer:

a

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Identify an equation in point-slope form for the line parallel to y = 1*-7 that
kakasveta [241]

<u><em>Answer:</em></u>

y + 2 = 1 (x+3) ............> y + 2 = x + 3

<u><em>Explanation:</em></u>

<u>The general form of the equation of a line in point-slope form is:</u>

y - y₁ = m (x - x₁)

<u>where:</u>

m is the slope of the line

(x₁ , y₁) is a point that belongs to the line

<u>The general form of the equation of a line in slope-intercept form is:</u>

y = mx + c

<u>where:</u>

m is the slope

c is the y-intercept

<u>1- Getting the point:</u>

We are already given the point (-3 , -2) so we'll directly use it

<u>2- Getting the slope</u>

<u>We are given that our line is parallel to the line:</u>

y = 1x - 7

We know that parallel lines have equal slopes

<u>This means that:</u>

slope of the line we want = 1

<u>3- Getting the equation:</u>

Substitute with the point and slope in the above form to get the equation

<u>This is done as follows:</u>

y - y₁ = m (x - x₁)

y - (-2) = 1 (x - (-3))

y + 2 = 1 (x + 3)

y + 2 = x + 3

Hope this helps :)

4 0
3 years ago
What is the length of AC?
sladkih [1.3K]
When the question says that triangle ABC ~ triangle DEF, that means the triangles are similar. This means that their proportions are the same.
In triangle ABC, side length AB is the equivalent of side length DE in triangle DEF.

Since the proportions must be the same, we can take the known side from triangle ABC, find the equivalent of it on triangle DEF, and find the proportions.
We already found that side length AB ~ side length DE.
Now we can divide the lengths to find the proportions.
28 / 8 = 3.5
This means that each side on triangle ABC will be 3.5 times greater than the equivalent side on triangle DEF.

The length of AC in triangle ABC is 3.5 times the length of DF in triangle DEF.
Side length DF is 10.
Multiply 3.5 by 10 to get the length of AC.
3.5 • 10 = 35
So the length of AC is 35 units.

Answer:
Side length AC in triangle ABC is 35 units.

Hope this helps!
7 0
3 years ago
Kylie borrowed a book from a library. The library charged a fixed rental for the book and a late fee for every day the book was
Shtirlitz [24]

Answer:

The fixed rentals for the book

4 0
3 years ago
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An online electronics store bought 20 keyboards and 15 phone chargers for $125 and then sold each keyboard for $35 and each phon
Bess [88]

(20)(35) + (15)(15) - 125

This is right because the store bought 20 keyboards and sold each one for 35 dollars, and bought 15 phone chargers and sold each one for 15 dollars. so, 20 x 35 = 700 and 15 x 15 = 225. We use - 125 because we used that money to buy the products, so we need to subtract that out of the profit we are going to get.  700 - 225 = 925. Now we subtract the money we used, 925 - 125 = 800. The profit they gained was 800 dollars!

8 0
1 year ago
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