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2 years ago

One fifth of sum of two angles is 24 and their diffetence is 14 find the two angles

Mathematics

1 answer:

Serggg [28]2 years ago

4 0

Answer:

Angles are $67^0,53^0$

Step-by-step explanation:

Let the angles be $x,y$

One fifth of sum of two angles is 24

$\frac{x+y}{5} =24\\\\x+y=120$

The difference is $14$

$x-y=14$

$2x=134\\\\x=67^0$

$y=120-67\\\\=53^0$

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Mumz [18]

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Step-by-step explanation:

This is an isosceles triangle. Since the legs are congruent, then the base angles are congruent.

9x + 3 = 84

- 3 -3

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2 years ago

Tienes un triángulo equilátero con lados de 10cm, lo divides en dos partes de manera horizontal tal que el área de ambos figuras

Tanya [424]

Answer:

x = 10/√2 ≈ 7.07

Step-by-step explanation:

Comenzaremos por dividir el triángulo en dos partes y definir H, como en la figura adjunta.

Aplicando el teorema de Tales, sabemos que:

$\dfrac{l/2}{H}=\dfrac{x/2}{h}\\\\\\\dfrac{l}{H}=\dfrac{x}{h}$

También sabemos que, dado que el tirángulo menor es la mitad que el triángulo mayor, la relación entre áreas es:

$\dfrac{A}{A_x}=\dfrac{lH/2}{xh/2}=\dfrac{lH}{xh}=2$

Dado que formamos dos triángulos rectángulos, podemos despejar el valor de H como:

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Podemos entonces despejar x de la siguiente manera:

$h=\dfrac{H}{l}\cdot x=\dfrac{lH}{2x}\\\\\\2x^2\dfrac{H}{l}=lH\\\\\\2x^2=l^2\\\\\\x=\dfrac{l}{\sqrt{2}}=\dfrac{10}{\sqrt{2}}\approx7.07$

6 0

3 years ago

I need help with this please

Volgvan

Answer: No she is not.

Step-by-step explanation: The correct answer is 7.25 F, because she just put them both as positives. When you have a negative it takes away from the total, so how I think of it is you subtract from the positive number, so you could just do 11.75-4.5. Hope this helped!

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2 years ago

Solve for x. 18 ÷ x = -2 x = _____

Eddi Din [679]

Answer:

-9

Step-by-step explanation:

18÷x = -2

18 = -2×x

18 = -2x

-9 = x

x = -9

6 0

2 years ago

Read 2 more answers

Of 25 dogs, 15 weigh more than 35 pounds. What is the percentile rank of a dog that weighs 35 pounds?

maksim [4K]

Basically, 15 out of 25 dogs weigh more than 35 pounds. So that would be:

15/25 = 60/100 = 60%

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3 years ago

One fifth of sum of two angles is 24 and their diffetence is 14 find the two angles​

One fifth of sum of two angles is 24 and their diffetence is 14 find the two angles