4 years ago

What is another fraction for 3/10

Mathematics

1 answer:

horsena [70]4 years ago

8 0

6/20
18\60
15\50
30\100

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In a certain sequence of all positive terms, {a1, a2, a3, …} each term equals the previous term times a constant factor. If (a1)

andriy [413]

Let $k$ be the constant factor between terms, so that

$a_2=ka_1$

$a_3=ka_2=k^2a_1$

and so on, with

$a_n=ka_{n-1}=\cdots=k^{n-1}a_1$

(notice how the exponent and the subscript add to $n$ )

Then

$a_5=k^4a_1$

so if

$a_1a_5=900$

then

$k^4{a_1}^2=900\implies k^4=\dfrac{900}{{a_1}^2}=\left(\dfrac{30}{a_1}\right)^2\implies k^2=\dfrac{30}{a_1}$

Now,

$a_3=k^2a_1=\dfrac{30a_1}{a_1}=30$

so the third term in the sequence is 30.

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3 years ago

Free brainliest (I will do free brainliest to help rank up people)

Mice21 [21]

Answer:

thank you so much!

Step-by-step explanation:

4 0

3 years ago

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I need help with this question I dont know what to do

ziro4ka [17]

M<A + m<B = 180
5y + 9y + 68 = 180
14y + 68 = 180
14y = 180 -68
14y = 112
y = 112/14
y = 8

so
m<B = 9y + 68
m<B = 9(8) + 68
m<B = 72 + 68
m<B = 140

7 0

3 years ago

The ordered pair (1, -5) is a solution for the system x + 2y = -9 and x - y = 6.<br> true <br> false

sweet [91]

In an ordered pair, x is the first number and y is the second number. So this is telling you x=1 and y=-5. You can take this information and plug it into the formulas.

x + 2y = -9
1 + 2(-5) = -9
1 + -10 = -9? True

x - y = 6
1 - -5 = 6? *
1 + 5 = 6? True.

(*Subtracting a negative makes it a positive.)

3 0

3 years ago

Question:twice as much as the sum of eighteen and eleven<br><br> in numbers and don't solve

Dmitrij [34]

2(18+11)
i think this is the expression you are looking for

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3 years ago

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