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4 years ago

Algebra applications: find the value of x and y

Mathematics

1 answer:

azamat4 years ago

6 0

Answer:

x = (270° - 9y°)/2

y = (270° - 2x°)/9

Step-by-step explanation:

The sum of angles in a quadrilateral is 360°

The angles in the quadrilateral above are: 3y°, 6y°, 2x° and 90°

2x° + 3y° + 6y° + 90° = 360°

2x° + 9y° = 360° - 90°

2x° + 9y° = 270°

2x° = 270° - 9y°

x = (270° - 9y°)/2

2x° + 9y° = 270°

9y° = 270° - 2x°

y = (270 - 2x°)/9

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Are the following figures similar?

Mrac [35]

Answer:

No; the corresponding angles are not congruent

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4 years ago

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FrozenT [24]

Answer:

m∠8 = 30°

Step-by-step explanation:

Since line AB is parallel to line CD, and m∠4 = 30°, therefore:

m∠4 and m∠8 are corresponding angles.corewslinding angles are congruent.

Therefore, this means that their measure would be equal to each other, since they are congruent.

Thus:

m∠8 = 30°

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3 years ago

I need yo help real this math problem can you please help me

barxatty [35]

Answer:

I think true

Step-by-step explanation:

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3 years ago

Davis is putting tile in his rectangular kitchen. His kitchen is 13 feet long, and 17 feet wide. The tile davis is installing is

Fofino [41]

Answer:

It will cost is $828.75.

Step-by-step explanation:

Given:

Davis is putting tile in his rectangular kitchen. His kitchen is 13 feet long, and 17 feet wide. The tile davis is installing is $3.75 per square foot.

Now, to find the total cost.

Davis is putting tile in his rectangular kitchen.

Length = 13 feet.

Width = 17 feet.

So, to get the area of kitchen:

Area = length × width

Area = 13 × 17

Area = 221 square foot.

As, the unit rate is given.

Cost per square foot = $3.75.

Now, to get the total cost by using unitary method:

If cost of 1 square foot = $3.75.

So, the cost of 221 square foot = $3.75 × 221

= $828.75.

Therefore, it will cost $828.75.

3 0

3 years ago

4-58. Lisa plans to retire on her 61st birthday. On her

mojhsa [17]

Answer:

Lisa invest "$2180.81" in her bank.

Step-by-step explanation:

The given values are:

On Lisa's 62nd birthday,

she withdraw = $10,000

The annuity of $A will remain at 3 percent for 40 years. The retirement pension of $10000 lasts 23 years at rate percentage of 3 but begins 40 years later.

⇒ $A\times (\frac{P}{A} ,3 \ percent,40) - 10000 (\frac{P}{A} ,3 \ percent,23)\times \frac{1}{(1.03)40} = 0$

⇒ $A\times 23.1148 - 10000\times 16.4436\times 0.3066 = 0$

⇒ $A = 10000\times 16.4436\times \frac{0.3066}{23.1148}$

⇒ $= 10000\times 16.4436\times 0.0132$

⇒ $=2180.81$ ($)

4 0

3 years ago

Algebra applications: find the value of x and y​

Algebra applications: find the value of x and y