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s344n2d4d5 [400]
2 years ago
11

I need helpppp :((((((( 20 marks for this summative

Mathematics
1 answer:
KonstantinChe [14]2 years ago
5 0

Answer:

47v

Step-by-step explanation:

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Arithmetic sequence
HACTEHA [7]

Answer:18

Step-by-step explanation:

Note: Mathematicians start counting at 1, so by convention, n=1 is the first term. So we must define what the first term is. Then we have to figure out and include the common difference.

Taking a look at the examples again,

Sequence: 1, 2, 3, 4, … | Formula: a(n) = n + 1 | Recursive formula: a(n) = a(n-1) + 1, a(1) = 1

Sequence: 3, 8, 13, 18, … |Formula: b(n) = 5n - 2 | Recursive formula: b(n) = b(n-1) + 5, b(1) = 3

8 0
3 years ago
A computer costs £927 plus VAT, where VAT is charged 20% find the total cost of the computer
liubo4ka [24]

A computer costs 927 plus VAT where VAT is 20%. We need to find the total cost of the computer.

The total cost = original cost + VAT

Total Cost = 927 + 20% * 927

20% converts to decimal by moving the decimal 2 units up, so it is 0.2

= 927 + 0.2*927

Multiply to find value of tax

= 927 + 185.4

Add to find the total cost

Total cost = 1112.4 euros

8 0
3 years ago
Find the missing number of each unit rate. 18/3= ?/1 and 12/2= ?/1
gtnhenbr [62]

the answer is 6/1 and 6/1 simply divide and put the answer over one                      

3 0
3 years ago
Show the steps to solve the system of equation. x-2y+3z=-4 , 3x+y-z=0 , 2x+3y-5z=1
Taya2010 [7]

Answer:

x= -1,  y = 6,  z = 3

Step-by-step explanation:

let me solve it with Gaussian Elimination

8 0
3 years ago
Explain your answers please
nirvana33 [79]
First is 7 second is 8 third is 3
6 0
3 years ago
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