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2 years ago

8

A total of 392 were sold for the school play. They were either adult tickets or student tickets. The number of students sold was

three times the number of adult tickets sold. How many adult tickets were sold?

1 answer:

inn [45]2 years ago

3 0

The correct answer to the problem in 130 student tickets was sold

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I don’t understand can someone help me

Elden [556K]

You set 49 equal to 8x - 15

So

8x - 15 = 49
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Then divide by 8

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3 years ago

Let n be a natural number. Show that 3 | n3 −n

Vladimir [108]

Let $n=1$ . Then $n^3-n=1^3-1=0$ . By convention, every non-zero integer $n$ divides 0, so $3\vert n^3-n$ .

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You have

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We assumed that $3\vert k^3-k$ , and it's clear that $3\vert 3(k^2+k)$ because $3(k^2+k)$ is a multiple of 3. This means the remainder upon divides $(k+1)^3-(k+1)$ must be 0, and therefore the relation holds for $n=k+1$ . This proves the statement.

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3 years ago

True or false<br><br> A rhombus is an isosceles trapezoid

Elina [12.6K]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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