If y is directly proportional with x and y=24 when x=6. What is the value of x when y=16

Mathematics

1 answer:

aliya0001 [1]3 years ago

8 0

Answer:

x = 4

Step-by-step explanation:

Given y is directly proportional to x then the equation relating them is

y = kx ← k is the constant of proportion

To find k use the condition y = 24 when x = 6 , then

24 = 6k ( divide both sides by 6 )

4 = k

y = 4x ← equation of proportion

When y = 16, then

16 = 4x ( divide both sides by 4 )

4 = x

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Can the sides of a triangle have lengths 6.2, 0.5, and 7.8? yes or no

Vitek1552 [10]

No, it's not possible for the sides of a triangle to have those lengths.

According to the triangle inequality theorem, the sum of any two sides of the triangle has to be bigger than the last side. Let's test this.

$6.2+7.8\ \textgreater \ 0.5$

This inequality satisfies the triangle inequality theorem.

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This also satisfies the theorem.

$6.2+0.5 \textless \ 7.8$

Uh oh. This does not satisfy the triangle inequality theorem. Thus, it is not possible for a triangle to have these side lengths.

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3 years ago

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Brut [27]

Answer:

I believe it is C

Step-by-step explanation:

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3 years ago

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mr_godi [17]

Step-by-step explanation:

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Using the quadratic formula which is

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From the question

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