2 years ago

CAN SOMEONE PLEASE HELP ME!!!

Mathematics

1 answer:

Sindrei [870]2 years ago

8 0

Answer:

2/5, 3/7, and 2/11

Step-by-step explanation:

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What is the absolute value of –27? A. –27 B. 27

Serga [27]

Absolute value makes it positive
answe is 27
the answer is B

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3 years ago

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en un maratòn participan corredores de todos los continentes 5/6 de los corredores son europeos se sabe que los americanos son l

Marysya12 [62]

Usando proporciones, se encuentra que 400 africanos han participado.

En total, hay x participantes.

$\frac{5}{6}$ de los corredores son europeos, o sea:

$E = \frac{5x}{6}$

Los americanos son la dècime parte de los europeos, o sea:

$Am = \frac{1}{10}E = \frac{5x}{60} = \frac{x}{12}$

Los africanos son la quinta parte de los americanos, o sea:

$Afr = \frac{1}{5}Am = \frac{x}{60}$

En la carrera han inscritos 24 000 participantes, o sea, $x = 24000$ . Por eso, la cantidad de africanos es:

$Afr = \frac{x}{60} = \frac{24000}{60} = 400$

Para obtener más información sobre las proporciones, puedes visitar a brainly.com/question/24615636

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2 years ago

What is the value of y in the following system? Y= 3x-5 6x + 3y= 15

nalin [4]

X = 2
y = 1

You can get this by replacing the y in the second equation with the 3x - 5 from the first. Then solve for x. Once you have that value, you can solve for y.

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Find all the solutions to the equation 7sin^2x -14sinx+2=-5

Allisa [31]

I will get you started.

Let sin x = u

Then 7sin^2x -14sinx+2=-5 become

7u^2 - 14u = - 5

7u^2 - 14u + 5 = 0

Steps:

1. Solve for u.

2. Back- substitute for u.

3. Take the arcsin on both sides to find the angle(s).

You finish.

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9.3(x - 8) = 3x - 24 is and example of

Montano1993 [528]

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