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weqwewe [10]
3 years ago
13

if 4 men and 1 dog can dig 12 holes in 4 days, and 2 men and 1 dog can dig 4 holes in 2 days, how long will it take 1 man and 2

dogs to dig 15 holes
Mathematics
1 answer:
madam [21]3 years ago
3 0
 The answer is 8 days
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A country's population in 1991 was 147 million. in 1998 it was 153 million. Estimate the population in 2017 using the exponentia
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300 mil but people die off soo
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HELPPP!! PLS!!! ❤❤ ​
VashaNatasha [74]

Answer:

The first five belong in the left most group of 1/6 =  1/3÷2

The sixth (right) one belongs in the middle group of 1/9 = 1/3÷3

Step-by-step explanation:

5 0
3 years ago
Use trigonometric ratios to find the indicated side
iragen [17]

Answer:

a = 139.1

b = 56.2

Step-by-step explanation:

A. Reference angle = 68°

Opp = a

Hyp = 150

Therefore:

Sin 68 = opp/hyp

Sin 68 = a/150

150*sin 68 = a

a = 139.1 (nearest tenth)

B. Reference angle = 68°

Adj = b

Hyp = 150

Therefore:

Cos 68 = adj/hyp

Cos 68 = b/150

150*cos 68 = b

b = 56.2 (nearest tenth)

4 0
2 years ago
¿Cuánto recorre aproximadamente una rueda que da 60 vueltas si ésta tiene un radio de 0.20 m?
damaskus [11]

La rueda recorre una distancia de 75.420 metros tras 60 vueltas. (Correct choice: A)

<h3>Cuánta distancia recorre una rueda que da 60 vueltas?</h3>

La rueda se desplaza sobre el suelo mediante un tipo de movimiento conocido como rodadura, en la que la rueda experimenta rotación y traslación, cuyo centro instantáneo de rotación es el punto de contacto entre la rueda y el suelo.

Si no existe deslizamiento de la rueda con respecto al suelo, entonces la distancia recorrida tras una revolución de la rueda (s), en metros, es descrita por la siguiente ecuación:

s = 2π · r         (1)

Donde r es el radio de la rueda, en metros.

Si tenemos que r = 0.20 m, entonces la distancia recorrida es:

s = 2π · (0.20 m)

s ≈ 1.257 m

Asimismo, la distancia recorrida es directamente proporcional al número de revoluciones de la rueda es y la distancia recorrida tras 60 vueltas es determinada por regla de tres simple:

S = 60 vueltas × (1.257 m / 1 vuelta)

S = 75.420 metros

La rueda recorre una distancia de 75.420 metros tras 60 vueltas.

Para aprender más sobre el movimiento de ruedas: brainly.com/question/2862170

#SPJ1

4 0
1 year ago
a circular fountain has a radius of 9.4 feet. find its diameter and circumference to the nearest tenth.
Leni [432]
Diameter is 2r, or 18.8 ft

Circumference is 2*pi*r, or 59.1 ft
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