Answer:
(x,y,z)=( -2, -1 ,5)
Step-by-step explanation:
9x+2y-27z=-155 (1)
-11x-y+37z=208 (2)
19x+6y-52z=-304 (3)
(1) *3 ;(2) *6 ;(3)*1, you have
27x+6y-81z=-465 (1)
-66x-6y+222z=1248 (2)
19z+6y-52z=-304 (3)
(1) +(2), you have
-39x+141z= 783 (4)
(4) /3, you have
-13x +47z=261 (4)
(2) +(3), you have
-47x+170z=944 (5)
From ( 4) and (5), you have equations
-13x +47z=261 (4)
-47x+170z=944 (5)
(4)*(-47); (5)*13, you have
611x-2209z=-12,267 (4)
-611x+2210z=12,272 (5)
(4)+(5), you have
z=5
Replace z=5 in (4), you have
611x- 2209*5=-12,267
611x- 11,045 =-12,267
611x=-1222
x= -2
Replace x=-2, z=5 in (1) , you have
9*(-2) +2y -27*5=-155
-18+2y-135=-155
-18+2y=-20
2y=-2
y=-1
Result (x,y,z)=( -2, -1 ,5)
A. I think the sum she wrote was 5 163/200 + 6 21/1000.
B. I think the comparison of the sum of the two numbers in decimal form is 11.836, or 11 209/250 in mixed number form.
Answer:
49.51 pounds
Step-by-step explanation:
43.4+6.11
43.40
06.11
49.51
Answer:
Slope = -1
Step-by-step explanation:
If y value decreases...and then x increases...then 1/-1 which is = to -1.
4/5 would be 32/40 in simplest form.
To find the simplest form of 32/40 you would have to find the least common multiple of 32 and 40.
You can keep on adding until you find a common multiple.
32 64 96 128 160
40 80 120 160
After you find the least common multiple (160), you divide 32 and 40 by 160.
160÷32=5
160÷40=4
4 would be your numerator and 5 would be the denominator. So, you would get the fraction 4/5 as your answer.
