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lana [24]
3 years ago
7

In a fibonacci sequence, the first number is 1 and the tenth number is 111. find the second number.

Mathematics
1 answer:
Schach [20]3 years ago
8 0

Let x be the second number in the Fibonacci sequence.

Then we have the sequence is as follows:

1st: 1
2nd: x
3rd: 1 + x
4th: 1 + 2x
5th: 2 + 3x
6th: 3 + 5x

7th: 5 + 8x

8th: 8 + 13x

9th: 13 + 21x

10th: 21 + 34x

so 111 = 21 + 34x, so 34x = 90, so x = 90/34 = 45/17.

Thus the second term would be 45/17. (if I haven’t made any errors in arithmetic).

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Zachary purchased a computer for $1,300 on a payment plan. Two months after he purchased the​ computer, his balance was $1,100.
raketka [301]

Answer:

y = 1300 - 100x

Step-by-step explanation:

Zachary purchased a computer for $1300

The first step is to calculate the purchase he paid after 2 months

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The purchase made after 4 months is

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4 0
3 years ago
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yulyashka [42]

Answer:

Option 1: 1430p + 2200 = -4001

Step-by-step explanation:

Given that:

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1.43p by 1430p * 10^-3

2.2 by 2200 * 10^-3

-4.001 by -4001* 10^-3

So the equation will become:

1430p * 10^-3 + 2200* 10^-3 = -4001 * 10^-3

Taking  10^-3 common from both side

(1430p + 2200)* 10^-3 = -4001 * 10^-3

Cancelling  10^-3 from both sides we get:

1430p + 2200 = -4001

3 0
3 years ago
What is the GCD of (8,16)
solmaris [256]
Four is the gcd of 8,16

6 0
3 years ago
Read 2 more answers
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Anni [7]

Answer:

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let the width around the field be x metre

then (16+2x)(10+2x)-16×10=120

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or x²+13x-30=0

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either x+15=0,

x=-15 (Rejected being negative)

or x-2=0

x=2 metre

5 0
3 years ago
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