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almond37 [142]
3 years ago
7

A farmer Has 13 fewer chickens than ducks the farmer has 15 chickens how many ducks does the farmer have

Mathematics
2 answers:
Allisa [31]3 years ago
7 0

Answer:

He has 28 ducks

Step-by-step explanation:

13+15=28

erma4kov [3.2K]3 years ago
4 0

Answer:

2

Step-by-step explanation:

15-13=2

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Step-by-step explanation:

\frac{1,5}{6} = 0,25 = \frac{25}{100} = 1:4

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What is the value of the expression when y = 24? **Twelve less that eight times y.
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5-10(|0.8-3/6|)

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The perimeter of a rectangle is 50 inches. The length of the rectangle is 10 inches. Which method can be used to find w, the wid
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Step-by-step explanation:

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5 0
3 years ago
The bearing from the Pine Knob fire tower to the Colt Station fire tower is N 65°E and the two towers are 30 kilometers apart. A
Novay_Z [31]

Answer:

The distance of fire from Pine Knob fire tower is 42.43 km

The distance of fire from Colt Station fire tower is 15.53 km

Step-by-step explanation:

Consider point A as Pine Knob fire tower and Point B as Colt Station fire tower. So the distance between both towers that is AB is 30 km.  

Now both fire tower  are located at a bearing of N65°E. That is at point A from north, Colt station fire tower is located at an angle of 65° towards east.

From ranger on Pine knob tower, fire spotted makes bearing of N80°E. That is at point A from north fire is located at an angle of 80° towards east.

Similarly, from ranger on Pine knob tower, fire spotted makes bearing of S70°E. That is at point B from south fire is located at an angle of 70° towards east.  

Now calculate \theta_{1}=\angle BAC and \theta_{2}=\angle ABD as follows,  

For \theta_{1}=\angle BAC

\angle XAC=\angle XAB+\angle BAC

\therefore 80\degree=65\degree+\angle BAC

\therefore \angle BAC=15\degree

For \theta_{2}=\angle ABD

By using alternate angle property,

\ angle XAB =\angle ABD=65\degree

Refer attachment 1.  

From diagram consider the triangle ABC. To find the third angle that is \angle BAC can be calculated by using angle sum property of triangle.  

\angle BAC+\angle ABC+\angle BCA=180\degree

\therefore15\degree +135\degree +\angle BCA=180\degree

\therefore \angle BCA=30\degree

Refer attachment 2.  

Sine rule for the \Delta ABCcan be applied as follows,  

\ddfrac{\sin A}{a}=\dfrac{\sin B}{b}=\dfrac{\sin C}{c}

Substituting the values,

\dfrac{\sin 15}{a}=\dfrac{\sin 135}{b}=\dfrac{\sin 30}{30}

Now distance AC and BC can be calculated as follows,  

For distance AC,  

\dfrac{\sin 135}{b}=\dfrac{\sin 30}{30}

Cross multiplying,  

30\times\sin 135=b\times\sin 30

\dfrac{30\times \sin 135}{\sin 30}=b

b=42.43\:km

The distance of fire from Pine Knob fire tower is 42.43 km

For distance BC,  

\dfrac{\sin 15}{a}=\dfrac{\sin 135}{42.43}

Cross multiplying,  

42.43\times\sin 15=a\times\sin 135

\dfrac{42.43\times \sin 15}{\sin 135}=a

a=15.53\:km

The distance of fire from Pine Knob fire tower is 15.53 km

6 0
3 years ago
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