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Lunna [17]
3 years ago
11

If y varies directly as x and y = 3 when x = 10, find x when y = 8.

Mathematics
1 answer:
viva [34]3 years ago
7 0

Answer:

x=26.6 when y=8

Step-by-step explanation:

y=Kx, k=y/x, when y is 3 and x is 10,

k=3/10= 0.3

but when y is 8, x will be given by

x=y/k

x=8/0.3

x=26.6 approximately 27

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Anuta_ua [19.1K]

Answer:

<h2>2</h2>

Step-by-step explanation:

<h3>Let n= 4, m= -2 and j= 5</h3><h3 /><h3>(9n + 8m)/2j</h3><h3>= 9(4) + 8(-2)/2(5)</h3><h3>= 36 + (-16)/10</h3><h3>= 20/10</h3><h3>= 2</h3><h3 />

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7 0
3 years ago
If 3n is an odd number, which of the following is an even number?
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Answer:

Option (a).

Step-by-step explanation:

It is given that 3n is an odd number.

We need to find an even number from the given options.

Even numbers: Which are divisible by 2.

Odd numbers: Which are not divisible by 2.

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If we add or subtract 1 from an odd number, we always get an even number.

If we add or subtract 2 from an odd number, we always get an odd number.

3n is an odd number. So,

3n-1 is an odd number.

3n+2 is an even number.

3n+2 is an even number.

3n+2n is an even number because 2n is an even number and sum of two even numbers in always an even number.

Therefore, the correct option is (a).

6 0
4 years ago
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Mashutka [201]

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3 years ago
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