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stellarik [79]
2 years ago
8

X - y = -1 ; 3x - 2y = 6

Mathematics
2 answers:
Taya2010 [7]2 years ago
7 0
Solve for the first variable in one of the equations, then substitute the result into the other equation.

Mashcka [7]2 years ago
5 0

Answer:

x = 8

y = 9

Step-by-step explanation:

x - y = -1

Add y to both sides to get x by itself:

x = -1 + y

3(-1 + y) - 2y = 6

-3 + 3y - 2y = 6

-3 + y = 6

y = 9

x - 9 = -1

x = 8

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In the diagram, VZ/YZ=WZ/XZ. To prove that △VWZ ~ △YXZ by the SAS similarity theorem, which other sides or angles should be used
Vitek1552 [10]

Answer:

The angles \angle VZW\cong \angle YZX are used to prove the similarity of triangles VWZ and YXZ.

Step-by-step explanation:

Given information: \frac{VZ}{YZ}=\frac{WZ}{XZ}

Two triangles are called congruent if their corresponding sides are in same proportion or the corresponding angles are same.

If two corresponding sides of triangle have same proportion and their inclined angle is same, then by SAS rule of similarity both triangles are similar.

From the given figure it is noticed that the ∠VZW and ∠YZX are vertically opposite angles. The vertically opposite angles are always equal.

\angle VZW=\angle YZX                   (Vertically opposite angles)

\frac{VZ}{YZ}=\frac{WZ}{XZ}                (Given)

By SAS rule of similarity

VWZ\sim YXZ

Therefore the angles \angle VZW\cong \angle YZX are used to prove the similarity of triangles VWZ and YXZ.

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3 years ago
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Explain how you can compare the size of a product to the size of a factor when multiplying fractions without actually doing the
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<span>Explain how you can compare the size of a product to the size of a factor when multiplying fractions without actually doing the multiplication. Include a model.
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3 years ago
(18 + 7) x (11 - 7) write 3 steps then answer it and i will give u brainlyiest if u are correct
bezimeni [28]

Answer:

100

Step-by-step explanation:

(18 + 7) x (11 - 7)

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100

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Jamerra received a $3,000 car loan. She plans on paying off the loan in 2 years. At the end of 2 years, Jamerra will have paid $
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