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Ludmilka [50]
3 years ago
8

What is the best way to solve the system of equations below? *

Mathematics
2 answers:
Anton [14]3 years ago
8 0
The best method is substitution
steposvetlana [31]3 years ago
4 0

Answer:

b. Substitution

Step-by-step explanation:

-3x-3y=3

+3x .     +3x

-3/(-3y)=(3+3x)/-3

  y= -1-x

-1-x=-5x-17

+5x .   +5x

-1+4x= -17

+1 .        +1

4/(4x)=(-16)/4

x=-4

y=-1-x

y=-1--4

y=-1+4

y=3

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Find the sum of the arithmetic sequence 1, 3, 5, 7, … , 99.
bezimeni [28]

The sum of the arithmetic sequence 1, 3, 5, 7, … , 99 is 2525

<h3>What is Sequence?</h3>

Sequence is an enumerated collection of objects in which repetitions are allowed and order matters.

Given sequence is 1, 3, 5, 7, … , 99.

It is a arithmetic sequence, the difference between two consecutive terms will be same

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We need to find 99 is which term in the sequence

Aₙ = a + ( n - 1 ) d

99=1+(n-1)2

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