Are you posting questions to which you already know the answers?
Add the first two digits and get the third; add the second and third digits and get the fourth, add the third and fourth and get the fifth, etc. Next is 18.
2 3/4 ÷ 1/4 = (2×4+3)/4 ÷ 1/4 = 11/4 ÷ 1/4 = 11/4 × 4/1 = (11×4)/(4×1) = 44/4 = 11
11/3 1 ÷ 3/4 = 1 x 4/3 = 4/3 = 11/3
18. 1+3=4 3+4=7 4+7=11 7+11=18
4/3 or 11/34/3 or 11/34/3 or 11/34/3 or 11/3
This is a system of two linear equations: x+2y=11 3x-4y=-17 One way to solve this system is to solve for x (or y) in the first equation and then plug it into the second equation to solve for the other variable, which then allows us to solve for our original variable. (1) Take the first equation and solve for x: x=11-2y (2) Plug this value into the second equation: 3x-4y=3(11-2y)-4y=33-10y=-17. We see that y=5. (3) We now plug this into either equation to solve for x: From (1): x=11-2y=11-2(5)=1 We get x=1 and y=5. It's also always a good idea to plug the numbers we found into our original two equations to verify they work. Indeed, x+2y=1+2(5)=1+10=11, and 3x-4y=3(1)-4(5)=3-20=-17.
-(4-3) -(1) -1
a = 4
4 - 5X = 1 + 6Xadd 5X to each side4 = 1 + 11Xsubtract 1 from each side3 = 11Xdivide each sides integers by 113/11 = X=========check in original equation4 - 5(3/11) = 1 + 6(3/11)4 - 15/11 = 1 + 18/11( now 4 = 44/11 and 1 = 11/11 )44/11 - 15/11 = 11/11 + 18/1129/11 = 29/11=============checks
2 3/4 ÷ 1/4 = (2×4+3)/4 ÷ 1/4 = 11/4 ÷ 1/4 = 11/4 × 4/1 = (11×4)/(4×1) = 44/4 = 11
3^(-4) = (1/3)^4 = 1/81
| 2x + 3 | = 11 make 2 cases case 1) 2x + 3 = 11; solve x = 4 case 2) 2x + 3 = -11; solve x = -7 always 2 cases one = positive and one = negative
well that depends is it (-11,-10) and (-1,-4) or is it (-1,-11) (-4,-10) either way I'll solve the slope for both. so the first way with (-11,-10) (-1,-4) is to subtract the two y's over the two x's so -10--4/-11--1 which equals -10+4/-11+1 which equals -6/-10 and when you reduce you get 3/5 then the second ex. would be -4--11/-1--10 = -4+11/-1+10 = 6/9 reduce to 2/3.
11/3 1 ÷ 3/4 = 1 x 4/3 = 4/3 = 11/3
2/3 +4/6 =
3/11 = 12/44 1/4 = 11/44 3/11 is bigger.
2x - 3y = 4 x + 4y = 3 Write the augmented matrix: 2 -3 4 1 4 3 Multiply the first row by 1/2: 1 -3/2 2 1 4 3 Subtract the second row from the first row: 1 - 3/2 2 0 -11/2 -1 Multiply the second row by -2/11: 1 -3/2 2 0 1 2/11 Multiply the second row by 3/2 and add it to the first row: 1 0 25/11 0 1 2/11 Thus x = 25/11 and y = 2/11 Check:
(5 + 4 - 3 - 2) x 1 = 4