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Sladkaya [172]
3 years ago
14

The triangle below has a perimeter of 20. Solve for x​

Mathematics
1 answer:
MrMuchimi3 years ago
7 0

Answer:

x = 5

Step-by-step explanation:

Given that,

First side of a triangle = x+2

The second side of a triangle = 8

The third side of a triangle = x

We know that, perimeter is equal to the sum of all sides. So,

x+2+x+8 = 20

2x+10 = 20

2x = 10

x = 5

Hence, the value of x is equal to 5.

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The diameter of a pinhead is 0.000004 mm. What is this number,
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Step-by-step explanation:

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How many quarters does Annie have <br><br><br> A.35<br><br> B.49<br><br> C.3<br><br> D.7
spayn [35]
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Explanation:
Sarah has 21 more quarters than Annie.
As shown, It says That Sarah has 28 quarters.
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(13 + v) = -121

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3 years ago
2. Oscar rides his skateboard 5/8 mile in 1/4 hour. How fast, in miles per hour, does he ride his skateboard?​
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Angle a and b are complementary. M angle a equal (5x +2) degrees. Find m angle b. Justify your reasoning. Will mark brainliest !
Pachacha [2.7K]

Answer:

 ∠b = 88 - 5x

Step-by-step explanation:

If a and b are complementary, then sum of two angles is 90

∠a + ∠b = 90

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