Answer:
c
Step-by-step explanation:
Answer:
i think its 1 hour and 36 minutes or 1.6 hours
Step-by-step explanation:
Answer:
$27
Step-by-step explanation:
6 yards is 18 feet, so 18x1.5 = 27
4. Substituting for y:
.. 7x -(6 -2x) = 3
.. 9x = 9 . . . . . . . . . add 6, collect terms
.. x = 1
.. y = 6 -2*1 = 4
(x, y) = (1, 4)
5. Substituting for x:
.. 3(y -4) +y = 12
.. 4y = 24 . . . . . . . add 12, collect terms
.. y = 6
.. x = 6 -4 = 2
(x, y) = (2, 4)
6. Substituting for x:
.. 4(y -5) -y = 4
.. 3y = 24 . . . . . . . add 20, collect terms
.. y = 8
.. x = 8 -5 = 3
(x, y) = (3, 8)
7. y = 2x -6 . . . . . add 2x to the first equation
Substituting for y:
.. 5x -(2x -6) = 9
.. 3x = 3 . . . . . . . add -6, collect terms
.. x = 1
.. y = 2*1 -6 = -4
(x, y) = (1, -4)
8. x = 2 -3y . . . . . add -3y to the first equation
Substituting for x:
.. y -(2 -3y) = -6
.. 4y = -4 . . . . . . . add 2, collect terms
.. y = -1
.. x = 2 -3*(-1) = 5
(x, y) = (5, -1)
Answer:
![z = \frac{8}{5}](https://tex.z-dn.net/?f=z%20%3D%20%20%5Cfrac%7B8%7D%7B5%7D%20)
Step-by-step explanation:
![2(4z - 1) = 3(z + 2)](https://tex.z-dn.net/?f=2%284z%20-%201%29%20%3D%203%28z%20%2B%202%29)
![8z - 2 = 3z + 6](https://tex.z-dn.net/?f=8z%20-%202%20%3D%203z%20%2B%206)
![8z - 3z = 6 + 2](https://tex.z-dn.net/?f=8z%20-%203z%20%3D%206%20%2B%202)
![5z = 8](https://tex.z-dn.net/?f=5z%20%3D%208)
![z = \frac{8}{5} = 1 \frac{3}{5}](https://tex.z-dn.net/?f=z%20%3D%20%20%5Cfrac%7B8%7D%7B5%7D%20%20%3D%201%20%5Cfrac%7B3%7D%7B5%7D%20)