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sveta [45]
2 years ago
12

Change 21/4 to a mixed number​

Mathematics
1 answer:
8090 [49]2 years ago
3 0

Answer:

5\frac{1}{4}

Step-by-step explanation:

Greatest multiplier of 4 that is less than 21 is 5 (4 x 5 = 20)

Put the remaining number as the numerator (21 - 20 = 1)

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Para hacer 600 m de una obra, 30 obreros han trabajado 12 dias a razon de 10 horas diarias. ¿Cuantos dias necesitaran 36 obreros
Gwar [14]

Respuesta:

25 días

Explicación paso a paso:

Dado :

escenario 1

Área = 600 m

Número de días = 12

Número de trabajadores = 30

Tasa = 6

Escenario 2:

Área = 900 m

Número de días = n

Número de trabajadores = 36

Tasa = 6

Igualar los parámetros en cada escenario:

12 / n = 36/30 * 6/10 * 600/900

12 / n = 6/5 * 3/5 * 2/3

12 / n = 6/5 * 1/5 * 2/1

12 / n = 12/25

12 * 25 = 12n

300 = 12n

n = 300/12

n = 25 días

7 0
3 years ago
Please help brainiest for correct answer please i need this done quick
babunello [35]

Answer:

Its the third answer

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Need help with this one
Simora [160]

Answer:

try c

Step-by-step explanation:

6 0
3 years ago
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A right circular cylinder has a volume of 1 cubic meter and a height of 0.6 meters what is the radius of the cylinder to the nea
lapo4ka [179]

The volume formula of a cylinder is :

V=\pi r^2h

From the problem, the volume is 1 m^3 and the height is 0.6 m.

Substitute the given to the formula :

\begin{gathered} 1=\pi r^2(0.6) \\ 1=3.14(0.6)r^2 \\ r^2=0.53 \end{gathered}

Take the square root of both sides of the equation :

\begin{gathered} r^2=0.53 \\ r=\sqrt[]{0.53} \\ r=0.728 \end{gathered}

The answer is r = 0.728 m

8 0
1 year ago
Need help ASAP giving 25 points
Kruka [31]

Answer:

63in. 2

Step-by-step explanation:

7 0
3 years ago
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