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mr_godi [17]
3 years ago
10

Solve for X? Please I’m clueless

Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
5 0

Answer:

Step-by-step explanation:

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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

8 0
2 years ago
Solve pls brainliest
VikaD [51]

Answer: -5.27 + (-3.32) = -8.59  and -5.6 + 27.4 = 21.8

Step-by-step explanation: Have a nice day bro!✌️

6 0
2 years ago
josie cast a shadow of 6ft and she is 5 ft 6 in tall. A building cast a shadow of 18 ft at the same time that josie measured her
Debora [2.8K]
Josie's height = 5 ft 6 in. = 5 1/2 ft = 11/2 ft.
Josie's shadow = 6 ft.

Ratio of shadow to height = 6 / 11/2 = 12/11
So, It would be equal to ratio of building's shadow to building's height.

18/x = 12/11
x = 18*11 /12
x = 3*11 / 2
x = 16.5

In short, Your Answer would be 16.5 Feet

Hope this helps!

6 0
3 years ago
The sum of the lengths of the two bases of a trapezoid is 22 cm and its area is 66 cm2.
ludmilkaskok [199]

Answer:

h = 6 cm

Step-by-step explanation:

Given that,

The area of a trapezoid, A = 66 cm²

The sum of the lengths of the two bases of a trapezoid is 22 cm.

We need to find the height of the trapezoid.

The area of a trapezium is given by :

A=\dfrac{1}{2}\times (\text{sum of parallel sides})\times \text{height}

Substitute the values,

h=\dfrac{2A}{\text{sum of parallel sides}}\\\\h=\dfrac{2\times 66}{22}\\\\h=6\ cm

So, the height of the trapezoid 6 cm.

8 0
3 years ago
The function below models the correlation between the number of hours a plant is kept in sunlight (x) and the height (y), in mm,
Helga [31]
D height of the plant increases by 4 mm dor every hour of
8 0
3 years ago
Read 2 more answers
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