Hey there! :)
Answer:
y = 4x + 48
Step-by-step explanation:
Original equation:
y = 1/4x -12
Switch 'x' and 'y' to solve for the inverse:
x = 1/4y - 12
Add 12 to both sides:
x + 12 = 1/4y - 12 + 12
x + 12 = 1/4y
Multiply both sides by 4:
4(x+12) = y
4x + 48 = y
The inverse is y = 4x + 48
If you earn $9 per hour and you work 8 hours
So 8 x 9 = 72
$72 in 8 hours
Answer:
x = 12
Step-by-step explanation:
I think that the answer is 3 or 5