Acomputer normally cost $640 its on sale this week for $480 what is the markdown on the price

Answer is provided in the image attached.

For this case we have that the original price is $ 640. If this week is at $ 480 then the discount is:

$ 640- $ 480 = $ 160

Thus, the discount is $ 160.

We look for the percentage by making a rule of three:

$ 640 -------------> 100%

$ 160 -------------> x

Where "x" represents the discount percentage:

Thus, the discount percentage is 25%

25%

you never say the total so we cant find the percentage used for petrol

step-by-step explanation:

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation: