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Arada [10]
2 years ago
14

In a country there are 48 000 people in the defence services. They work in the army, navy and air force in the ratio : 2.3. How

many people are in each service?​
Mathematics
1 answer:
KatRina [158]2 years ago
8 0

Based on the ratios given, the number of people in each service is 8000 in the army, 16000 in the navy and 24000 in the air force.

<h3>What is the number of people in each service?</h3>

Given that 48000 people are in the defence services.

The defence services comprises of the army, navy and air force.

  • The defence services are in the ratio 1:2:3

To determine the number of people in each service:

Total ratio = 1 + 2 + 3 = 6

  • Number of people in each service = each service ratio/total ratio × 48000

Number in army = 1/6 × 48000 = 8000 persons

Number in Navy = 2/6 × 48000 = 16000 persons

Number in air force = 3/6 × 48000 = 24000 persons

Therefore, the number of people in each service is 8000 in the army, 16000 in the navy and 24000 on the air force.

Learn more about ratio at: brainly.com/question/25927869

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Answer:

It will take him about 13 houses to sell the 5 candy bars.

Pat has an 18% chance of selling his last candy in the 11th house.

Step-by-step explanation:

Since Pat is required to sell candy bars to raise money for the 6th grade field trip, and there is a 40% chance of him selling a candy bar at each house, and he has to sell 5 candy bars in all, to determine the number of houses it takes and determine the probability he sells his last candy bar at the 11th house, the following calculations must be performed:

5 / 0.40 = X

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0.45 x 0.4 = 0.18

Thus, Pat has an 18% chance of selling his last candy in the 11th house.

4 0
3 years ago
3x+5y=-3 x-5y=-5 show your work
frez [133]
We are given the equations 3x+5y=-3 and x-5y=-5.

Both equations have a 5y  term which allows us to easily solve the system by elimination. To do so we will add the equations together like a simple addition problem by adding the x terms together, the y terms together, and the integer answers together.

3x + 5y = -3
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---------------
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The y terms cancel out since one is positive and one is negative. Now we can solve for x.

4x = -8

\frac{4x}{(4)} = \frac{-8}{(4)}

x = -2

Now plug -2 in for x in one of the original equations to find y.

(-2) - 5y = -5

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y = 3/5

Our answer as an ordered pair is (2, 3/5)
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