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guajiro [1.7K]
3 years ago
11

30 pointsWhat is the value of y?Enter your answer in the box.y =

Mathematics
1 answer:
bezimeni [28]3 years ago
8 0

Answer:

Step-by-step explanation:

Because of the Isosceles Triangle Theorem, angle B and angle C have the same measure.  If angle B is 75, then so is angle C.  By the Triangle Angle-Sum Theorem, all the angles of a triangle have to add up to equal 180 degrees.  That means that angle A = 180 - 75 - 75 which is 30 degrees.  Therefore,

Angle A = 30 degrees.   By the substitution property of equality,

4y + 10 = 30 and

4y = 20 so

y = 5

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Troyanec [42]

Answer:

120

Step-by-step explanation:

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3 years ago
What is the result of gaining 10 pound then losing 20
kiruha [24]

Answer:

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Step-by-step explanation:

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3 years ago
What is the value of 1/2 + (-5/6) + 1/4?<br> 1. -7/12<br> 2. -1/12<br> 3. 1/12<br> 4. 1 7/12
algol [13]

Answer:

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Step-by-step explanation:

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5 0
2 years ago
5x-11=3x+5 solve for ”x”
I am Lyosha [343]

Answer:

x = 8

Step-by-step explanation:

Step 1: Write equation

5x - 11 = 3x + 5

Step 2: Solve for <em>x</em>

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Step 3: Check

<em>Plug in x to verify it is a solution.</em>

5(8) - 11 = 3(8) + 5

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