3 years ago

Evaluate: . C=4x? rind the value of c- given thatx = 16 pour

Mathematics

1 answer:

Butoxors [25]3 years ago

6 0

Answer:

c=4x

c-4(16)

c=64

Step-by-step explanation:

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Easy points. <br> Type one word to describe how you feel about your effort in Math

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Answer:

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Step-by-step explanation:

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3 years ago

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Prove: If n is a positiveinteger and n2 is<br> divisible by 3, then n is divisible by3.

notka56 [123]

Answer:

If $n^2$ is divisible by 3, the n is also divisible by 3.

Step-by-step explanation:

We will prove this with the help of contrapositive that is we prove that if n is not divisible by 3, then, $n^2$ is not divisible by 3.

Let n not be divisible by 3. Then $\frac{n}{3}$ can be written in the form of fraction $\frac{x}{y}$ , where x and y are co-prime to each other or in other words the fraction is in lowest form.

Now, squaring

$\frac{n^2}{9} = \frac{x^2}{y^2}$

Thus,

$n^2 = \frac{9x^2}{y^2}$

$\frac{n^2}{3} = \frac{3x^2}{y^2}$

It can be clearly seen that the fraction $\frac{3x^2}{y^2}$ is in lowest form.

Hence, $n^2$ is not divisible by 3.

Thus, by contrapositivity if $n^2$ is divisible by 3, the n is also divisible by 3.

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4 years ago

PLEASE Help will give brainliest :0 (MATH)

steposvetlana [31]

Answer: 12/5 = 2 2/5

Step-by-step explanation:

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3 years ago

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I need help like now please!!!!! simplify the expression : 7y + 3x + 3 - 2y + 6

Deffense [45]

Simplified: 3x+7y+(-2y)+9
Coefficient of y: 5
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3 years ago

While hiking, Eric ate 3/5 of a cup of nuts. Akira ate 1/10 of a cup of nuts. How much more did Eric eat than Akira?

Ivan

Answer:

1/2

Step-by-step explanation:

3/5 - 1/10

6/10 - 1/10 = 5/10 = 1/2

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3 years ago