Answer:
x = 1
y = -1
z = 2
Step-by-step explanation:
You have the following system of equations:
First, you can subtract euqation (3) to equation (1):
x + 2y - z = -3
<u>-x +y -z = - 4 </u>
0 3y -2z = -7 (4)
Next, you can multiply equation (3) by 2 and subtract it to equation (2):
2[ x -y + z = 4]
<u> -2x +y -z = -5</u>
0 -y + z= 3 (5)
You multiply equation (5) by 2 and sum (5) with (4):
2[ -y + z = 3]
<u> 3y -2z= -7</u>
y + 0 = -1
Then y = -1
Next, you replace y=-1 in (5) to obtain z:
-(-1) + z = 3
z = 2
Finally, you can replace z and y in the equation (3) to obtain x:
x - (-1) + (2) = 4
x = 1
Answer:
7 -if rounded to the nearest tenth would be 10
Step-by-step explanation:
The median is the number in the middle so
6-6-7-7-10-12-14
There are 7 numbers here so the middle number is 4 because there are 3 numbers before 4 and 3 numbers after 3 to get to 7 (that’s really hard to explain sorry but it’s a simple concept) my trick is to write it down then use two fingers to point at the first and last number and keep doing that moving in til I get to the middle number, which is 7. :)
Answer:
37.68
Step-by-step explanation:
c = 2 x 3.14 x 6
Answer:
23.607
Step-by-step explanation:
<em> Given:</em>
$65,575
9%
4 Year
4 x 9% = 0.36
65,575 x 0.36 = 23.607
<u><em>Not sure if it correct or not try my best </em></u>
Answer:
0.15
Step-by-step explanation:
