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erma4kov [3.2K]

3 years ago

15

A school raised a total of $1,648 to purchase new books. The money raised will be shared equally among 8 different classrooms. W

hat is the total amount of money each classroom will receive?

2 answers:

geniusboy [140]3 years ago

8 0

1,648 divided by 8 =206

kvasek [131]3 years ago

5 0

Answer:

$206

Step-by-step explanation:

1,648 ÷ 8 = 206

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Find 3 numbers in G.P whose sum is 28 and whose product is 512

nataly862011 [7]

Answer:

4, 8, 16.

Step-by-step explanation:

Let the three numbers in GP be $r, ra, ra^2$ , where $a \ne 0$ . We are given that $r + ra + ra^2 = 28$ and $r \cdot ra \cdot ra^2 = r^3a^3 = 512$ , the latter of which gives $ra = \sqrt[3]{512} = 8$ . So substituting this into the former equation gives $\frac{8}{a} + 8 + 8a = 28$ or

$8 + 8a + 8a^2 = 28a\\2a^2 + 2a + 2 = 7a\\2a^2 - 5a + 2 = 0\\(2a-1)(a-2) = 0\\a = \frac{1}{2} \vee a = 2$

And this gives our answer directly.

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3 years ago

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ikadub [295]

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Step-by-step explanation:

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3 years ago

Write the first 5 terms of the recursive sequence defined below. a1=0 an=2(an-1)²-1, for n>1

Aleksandr-060686 [28]

Answer:

0, -1, 1, 1, 1

Step-by-step explanation:

<u>Given recursive formula</u>

a₁ = 0
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a₄ = 2(1)² - 1 = 2 - 1 = 1
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3 years ago

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Step-by-step explanation:

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Zigmanuir [339]

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