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allochka39001 [22]
3 years ago
7

For what values of x and y are the triangles congruent?

Mathematics
2 answers:
KatRina [158]3 years ago
7 0
For y
since both triangles are congruent,
6y-8=2y+8
4y=16
y=4
For x
5x-5y=2y+7
since y is 4, substitute y to 4
so,
5x-5(4)=2(4)+7
5x-20=15
5x=35
x=7
olya-2409 [2.1K]3 years ago
3 0

Yeah, what he said...x=7 :)

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Answer:

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Step-by-step explanation:

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With the measures of 10, 11, and 2, this follows the theorem.

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\qquad \qquad\huge \underline{\boxed{\sf Answer}}

Let's solve for x ~

\qquad \sf  \dashrightarrow \: 5(2x + 4) = 15

\qquad \sf  \dashrightarrow \: (5 \times 2x) + (5 \times 4) = 15

\qquad \sf  \dashrightarrow \: 10x + 20 = 15

\qquad \sf  \dashrightarrow \: 10x + 20 - 20 = 15 - 20

\qquad \sf  \dashrightarrow \: 10x =  - 5

\qquad \sf  \dashrightarrow \:  \dfrac{10x}{10}  =  \dfrac{ - 5}{10}

\qquad \sf  \dashrightarrow \: x =   - \dfrac{ 1}{2}

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