) Solve the simultaneous equations x + 6y = 20 х+ x + 2y = 8

Answer

x + 6y = 20 {eq -1}

-

x + 2y = 8. {eq-2)

elimination method

4y=12

4. 4

y=3

substitute y=3 into eq 2

x + 2y =8

x +2(3)=8

x +6=8

x=8-6

x=2

the terms of a geometric sequence can be found by beginning with the first term and multiplying by the common ratio repeatedly. a recursive formula for a geometric sequence with common ratio r is given by an=ran−1 a n = r a n − 1 for n≥2 n ≥ 2 .

step-by-step explanation: