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anastassius [24]
3 years ago
7

Solve by substitution. X = y + 3 3x + y = 25

Mathematics
1 answer:
Vlad1618 [11]3 years ago
3 0
1.distribute
3y+9+y=25
2. combine like terms
4y+9=25
3. subtract 9 from both sides
4y=16
4. divide
Solution: y=4
and for X it would be
X= (4) +3
X=7
so the Final solution is (7,4)
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Answer:

Step-by-step explanation:

Question

Find the perimeter of a triangle with vertices A(2,5) B(2,-2) C(5,-2). Round your answer to the nearest tenth and show your work.​

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Using the distance formula

AB = sqrt(-2-5)²+(2-2)²

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0.05 is 1 tenth the value of
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