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Lapatulllka [165]
3 years ago
12

What is the value of x?

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
3 0
All angles in a triangle add up to 180

180 = 9 + 15 + 2x - 1 + 3x

180 = 24 - 1 + 2x + 3x

180 = 23 + 5x

180 - 23 = 5x

157 = 5x

Divide both sides by 5

X = 31.4 or 157/5
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3 years ago
In a Parallelogram CARS , &lt;C = 5x-20 and &lt;A = 3x+20. Find the value of x ?​
coldgirl [10]

Given that

In a Parallelogram CARS ,∠C = (5x-20)°

∠A = (3x+20)°

angle C and angle A are adjacent angles

We know that

In a Parallelogram the adjacent angles are supplementary.

⇛∠C + ∠A = 180°

⇛ (5x-20)°+(3x+20)° = 180°

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find the value of x (5x+12) (3x+8) a 10 b 15 c 20 d 25

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