Answer:
$891
Step-by-step explanation:
This is Your Answer: $891, Steps below
Answer:
x = 1, y = 6
Step-by-step explanation:
y = 6x
2x + 3y = 20
Plug y as 6x in the second equation and solve for x.
2x + 3(6x) = 20
2x + 18x = 20
20x = 20

x = 1
Plug x as 1 in the first equation and solve for y.
y = 6(1)
y = 6
Answer:

Step-by-step explanation:
Remmeber:

I am unsure how to do number 4.
1/2x(25-7). Difference means to subtract. And then just multiply by 1/2 since it is asking for half.
Answer:
Step-by-step explanation:
x = 6 + y
6 + y + y = 8
y = 1
x - 1 =6
x = 7
zx + zy = z(x + y) = 20
z = 2.5