Answer:
solution: (2, -2)
Step-by-step explanation:
y = 7x - 16,
y = 2(2x - 5)
solving...
7x - 16 = 2*(2x - 5)
7x - 16 = 4x - 10
7x - 4x = 16 - 10
3x = 6
x = 2
y = 7*2 - 16 = 14 - 16 = -2
4x - 10y = 12
2 (2x - 5y) = 12
2x - 5y = 12 / 2
2x - 5y = 6
This is the real answer.
Now,
if you want to find "x", it will be,
2x - 5y = 6
2x = 6 + 5y
x = (6 + 5y) / 2
And,
if you want to find "y", it will be,
2x - 5y = 6
5y = 2x - 6
y = (2x - 6) / 5
Answer:
34.5
Step-by-step explanation:
Add up all the numbers. 10+8+6+5=29. Then divide 29 by 100. Then multiply 10x What you got from 100/29. Sorry if thats confusing hope that helps!
Answer: $8
Step-by-step explanation:
$40 divided $5 by equals $8.
