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Maksim231197 [3]
3 years ago
7

Find the compliment of an angle whose supplement is 115 degrees.

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
7 0

Answer:

25°

Step-by-step explanation:

A supplementary angle refers to two angles that measure up to 180° degrees when added together.

Let x = one of the angles

Let y = 115°

x + y = 180^{\circ}

x = 180 - y

x = 180 - 115

x = 65°

To find the complementary angle;

A complementary angle refers to two angles that measure up to 90° degrees when added together.

Let a = one of the angles.

Let b = 65°

a + b = 90^{\circ}

a = 90 - b

a = 90 - 65

a = 25°

<em>Therefore, the complement of an angle whose supplement is 115 degrees is 25 degrees. </em>

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Answer:

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Step-by-step explanation:

Isolate the variable of y from one side of the equation.

-14=5(3y-10)-5y

<u>First, switch sides.</u>

\sf{5\left(3y-10\right)-5y=-15}

Use the distributive property.

<u>DISTRIBUTIVE PROPERTY:</u>

A(B-C)=AB-AC

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15y-5=10y

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Add by 50 from both sides.

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Then, you divide by 10 from both sides.

10y/10=35/10

Solve.

Divide the numbers from left to right.

35/10=7/2

y=7/2

Divide is another option.

7/2=3.5

\Longrightarrow: \boxed{\sf{y=\dfrac{7}{2}}}

  • <u>Therefore, the correct answer is y=7/2.</u>

I hope this helps. Let me know if you have any questions.

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