3 years ago

At the Beijing Olympics,

Mathematics

1 answer:

eduard3 years ago

6 0

It is 25% okay bruv

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Step-by-step explanation:

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The sum of two numbers is at least 30 and the difference between the two numbers is less than 8. X and y are the two numbers suc

vaieri [72.5K]

Answer:

1 Expert Answer

Let x and y be the two numbers. Then by assumptions we have x+y=30 and x-y=20. Hence, y=x-20 and by plugging this into the first equation we obtain x+x-20=30 or 2x=50 or x=25 and y=5

Step-by-step explanation:

So, divide 30 by 2 . That gives you 15 for x, 15 for y. Now, you have difference of six, divide by two, that equals 3.

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Natali5045456 [20]

Given:

Time spend on every 2 questions = 5 minutes.

To find:

The missing values for the given table.

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Let x be the number of questions and y be the number of minutes.

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Time spend on 1 question = $\dfrac{5}{2}=2.5$ minutes

Time spend on x questions = $2.5x$ minutes

Now,

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For x=1,

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