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3 years ago

5x + 2 y = 7 4x + y = 8

Mathematics

1 answer:

dsp733 years ago

8 0

4y.
Is the answer
Hope this helps

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For the sequence an = an-1 + an-2 and ai = 2, a2 = 3,

loris [4]

Answer:

$a_1 = 2$

$a_2 = 3$

$a_3 = 5$

$a_4 = 8$

$a_5 = 13$

Step-by-step explanation:

Given

$a_n = a_{n-1} + a_{n-2}$

$a_1 = 2$

$a_2 = 3$

Solving (a): The first term

This has already been given as:

$a_1 = 2$

Solving (b): The second term

This has already been given as:

$a_2 = 3$

Solving (c): The third term

This is calculated as:

$a_n = a_{n-1} + a_{n-2}$

$a_3 = a_{3-1} +a_{3-2}$

$a_3 = a_2 +a_1$

$a_3 = 3 +2$

$a_3 = 5$

Solving (d): The fourth term

This is calculated as:

$a_n = a_{n-1} + a_{n-2}$

$a_4 = a_{4-1} +a_{4-2}$

$a_4 = a_3 +a_2$

$a_4 = 5+3$

$a_4 = 8$

Solving (e): The fifth term

This is calculated as:

$a_n = a_{n-1} + a_{n-2}$

$a_5 = a_{5-1} +a_{5-2}$

$a_5 = a_4 +a_3$

$a_5 = 8+5$

$a_5 = 13$

3 0

3 years ago

What two numbers multiply to get 28 and 63

MakcuM [25]

2x14=28
7x9=63
Hope this helped?

4 0

3 years ago

Read 2 more answers

Which rate is the best deal for a box of cereal?

kondor19780726 [428]

The answer is c. You find the price per ounce. 4.29/24 = .178 then 3.49/18= .193 then 6.39/39= .163 and 2.49/14 = .177. The cheapest is c. Hope this helps!!!

8 0

3 years ago

A house is purchased for $375,000 & has gained 12% for the last 5 years. what is it worth now ?

UkoKoshka [18]

Answer:

$600,000 is your answer.

Step-by-step explanation:

What you do is multiply.

$375,000 x 12% x 5 = 225,000

$375,000 + 225,000 = $600,000 is your answer.

The house is now worth $600,000

6 0

4 years ago

How high is a tree that cast a 33ft shadow at the same time a9ft post casts a shadow w

AlladinOne [14]

How high is a tree that casts a 33 ft shadow at the same time a 5 ft pole casts a shadow which is 12 ft long?
let x=height of the tree
x/33=5/12
x=5*33/12
x=13.75

4 0

3 years ago