Treat the inequality sign as an equal sign (=) and move the x (along with its coefficient and sign) to the other side of the equation:
3y>12-9x
3y>3(4-3x)
then divide by 3:
y>4-3x
or
y>-3x+4
The original price for each card is 80 dollars each.
Substitute the valus of x and see which answer fits.
for x=0, y = 4·0 - 3 = -3
for x=1, y = 4·1 -3 = 1
Only the 2nd choice matches:
Input x 0 1 2 Output y -3 1 5
Answer:
Step-by-step explanation:
None of the choices is correct. Are you sure that the question was written accurately?
If p is the REGULAR price, not the same price, then there are three correct answers:
sale price = p-0.15p = 0.85p = $420.75