Mrs. park was buying a new couch. the couch's original price was $499. the new price of the couch is $325. what is the percent markdown?

34.8697395%

Step-by-step explanation:

Percent markdown = (original - new)/original * 100 percent

The original price = 499

The new price is 325

Substitute these values in

Percent markdown  = (499-325) /499 * 100 percent

                                  = (174/499) * 100 percent

                                    = .348697395 * 100 percent

                                   = 34.8697395%

-34.87%

Step-by-step explanation:

325 = P(499)

= 325 divided by 499

= 65.13

100 - 65.13 is 34.87

put the negative sign because its a markdown.

Hope this helps!

1gm = 1000mg so 0.1gm = 1000mg

first, convert the weight to kg

160lb * 1kg/2.2lb = 72.7kg

next, the dose

72.7kg * 100mg/kg = 7270mg