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3 years ago

What is the the answer to 340; 20% decrease

Mathematics

1 answer:

Trava [24]3 years ago

6 0

Do 340 ✖️0.20, and you'll get 68. Since that's 20% of 340, do 340 ➖ 68 and you'll get your final answer.

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This is hard i need help

taurus [48]

Answer:

a. 6 b. -2

Step-by-step explanation:

a. x^3 = 216

x = ³√216

x = 6

b. -n^3/4 = 2

-n^3 = 8

-n = ³√8

- n = 2

n = -2

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Mandarinka [93]

Perimiter=6 times legnth of one side
P=6(x+1/3y)
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P=6x+2y

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3 years ago

The numbers of teams remaining in each round of a single-elimination tennis tournament represent a geometric sequence where an i

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Answer:

$a_n = 128\bigg(\dfrac{1}{2}\bigg)^{n-1}$

Step-by-step explanation:

We are given the following in the question:

The numbers of teams remaining in each round follows a geometric sequence.

Let a be the first the of the geometric sequence and r be the common ration.

The $n^{th}$ term of geometric sequence is given by:

$a_n = ar^{n-1}$

$a_4 = 16 = ar^3\\a_6 = 4 = ar^5$

Dividing the two equations, we get,

$\dfrac{16}{4} = \dfrac{ar^3}{ar^5}\\\\4}=\dfrac{1}{r^2}\\\\\Rightarrow r^2 = \dfrac{1}{4}\\\Rightarrow r = \dfrac{1}{2}$

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406 students went on a field trip. Eight buses were filled with 6 students in travel cars. How many were in each bus?

Nezavi [6.7K]

Answer:

406÷6

Step-by-step explanation:

do Long division and you will get it

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