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pogonyaev
3 years ago
8

Find an odd natural numbers x such that LCM (x, 40) = 1400​

Mathematics
1 answer:
vesna_86 [32]3 years ago
5 0

Answer:

Let x be odd such that LCM {x,40} = 1400 .

Since 1400 = 23×52×7 , then

x ∈ {5m×7n∣(m,n) ∈ {0,1,2}×{0,1}} .

By testing these values, we find that x = 175 .

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Ilia_Sergeevich [38]

Answer:

Dog Pogo will fetch the frisbee <u>12 times</u> in 4 minutes.

Step-by-step explanation:

Given:

Number of minutes required =2 minutes.

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We need to find Number of times the dog can fetch the frisbee in 4 minutes.

First we will find number of frisbee fetch in minute.

In 2 minutes = 6 times frisbee fetched by the dog

so in 1 minute = Number of times frisbee fetched by the dog in 1 minute.

By using Using Unitary method we get;

Number of times frisbee fetched by the dog in 1 minute = \frac{6}{2} =3

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for 1 min = 3 times frisbee is been fetched by dog

So for 4 minutes = Number of times frisbee is been fetched by dog in 4 min.

Again by using Unitary Method we get;

Number of times frisbee is been fetched by dog in 4 min = 3\times4 = 12

Hence Dog Pogo will fetch the frisbee <u>12 times</u> in 4 minutes.

8 0
3 years ago
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Brilliant_brown [7]

Answer:

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Step-by-step explanation:

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To do this we can either...

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10/5=25 WRONG

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ORRR... we can set the equation so that the x is alone on one side.

To do this we can multiply both sides by 5

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Answer:

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Answer:

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