When solving the given system of equations, which statements are true? y = 9x - 18
y = 3x + 12
es )
A)
(5, 27) is the solution
B)
(27.5) is the solution.
Elimination is the BEST method.
D)
Substitution is the BEST method.
E)
Graphing the system is the BEST method.

movea DS_PointerTable,r7,r6

added on the 2020-10-12 05:11:14 by DevEd DevEd

Code:

const uint8 note = musicData.ReadUint8();

if(note & 0x80)

{

chnState.repeat = note & 0x7F;

repeatsLeft += chnState.repeat;

*m = chnState.prevCommand;

continue;

}

added on the 2020-10-12 11:23:06 by Saga Musix Saga Musix

From textfx:

Code:

int a,b,c,d,e,f,g,h,i,j,k,l; // So sue me

step-by-step explanation: so we look at the formula un = a + (n-1)d

un is the amount of seats

n is the nth term aka row number

a is the original sequence/row number

d is the difference between each term

so in this a=22 d=6 and n can remain as n because we are simply formjng a rule

lets put these in the equation

un=22+(n-1)(6)

this is your answer to part a

however

lets double check that this is correct, we'll try putting it into the second term

un=a+(n-1)d

u2=22+(2-1)(6)

u2=22+6

u2=28

as the question said the second row has 28 seats so now we know the formula we made is correct.

as for part b

un=a+(n-1)

its asking us to find a row with 100 seats.

remember un was the amount of seata so all we do is substitute this in.

un=100 a=22 d=6

un=a+(n-1)d

100=22+(n-1)(6)

so now we simplify to find n which is the row number.

100-22=22+(n-1)(6)-22

78=(n-1)(6)

78/6=(n-1)(6)/6

13=n-1

13+1=n-1+1

14=n

so now we know that in the 14th row there is 100 seats.

hope this and that you understood! its my first time using the app or anyone out on here : p its also me to revise so a bunch! ask more questions if you dont understand ☺

answer: (1,3) (3,-1) (5,-5) ?

step-by-step explanation: