Answer:
Step-by-step explanation:
Original price of the music box = $80
Price after 20% discount = Original price - discount
= 80 - 20% of 80
= 80 -
= 80 - 16
= $64
Price after 40% discount = 80 - 40% of $80
= 80 - 32
= $48
Original price of A faux Ming vase = $60
Price after 20% discount = Original price - discount
= 60 - 20% of $60
= 60 - 12
= $48
Price after 40% discount = Original price - discount
= 60 - 40% of 60
= 60 - 24
= $36
Answer:
y = 1/2x + 2
Step-by-step explanation:
m = -2, (3, - 1)
y - - 1 = -2(x - 3)
y + 1 = -2x +3
y = - 2x + 2
Perpendicular line slope: 1/2x
y = 1/2x +2
Answer:
60 km/h
Step-by-step explanation:
Average speed is total distance over total time.
Total distance: 30 + 0 + 150 = 180 km.
Total time: 0.75 + 0.25 + 2 = 3 hrs.
180/3 = 60/1
Answer: it will take 200 additional minutes for the two plans to cost the same.
Step-by-step explanation:
Let x represent the number of additional minutes it will take for the the two plans to cost the same.
Cingular's plan charges $39.99 per minute with additional minutes costing $0.45. This means that the total cost of x additional minutes would be
39.99 + 0.45x
Verizon's plan costs $44.99 with additional minutes at $0.40. This means that the total cost of x additional minutes would be
44.99 + 0.4x
For the the two plans to cost the same, the number of additional minutes would be
39.99 + 0.45x = 44.99 + 0.4x
0.45x - 0.4x = 44.99 - 39.99
0.05x = 10
x = 10/0.05
x = 200