Answer:
{y,x}={441,45}
Step-by-step explanation:
// Solve equation [2] for the variable y
[2] y = x + 9
// Plug this in for variable y in equation [1]
[1] (x +9) - 9x = -1
[1] - 8x = -10
// Solve equation [1] for the variable x
[1] 8x = 10
[1] x = 5/4
// By now we know this much :
y = x+9
x = 5/4
// Use the x value to solve for y
y = (5/4)+9 = 41/4
Answer:
x = 114 ur welcome
Step-by-step explanation:
60% ÷ 100= 0.60; $30 ÷ 0.60= $50
The answer is $50.
Answer:
Step-by-step explanation: