Round your answer to nearest cent.

Question

17kg of Yukon gold potatoes costs $26.80. Determine the cost of 5 lb of potatoes. Round your answer to the nearest cent.

Answer 1

17 kg = 37.4786 lbs

 

37.4786 : 26.80 :: 5 : x      proportion

37.4786x = 5(26.80)          product means/extremes

37.4786x = 134                 multiply

x = 3.57537368                 divide both sides by 37.4786

 

Five pounds costs $3.58.

 

Answer 2

Use the conversion factor

 

2.2 grams = 1 lb

 

 

Set a proportion.

 

Ratio of weight = ratio of cost

 

17 / 5 = 26.80 / x

 

 

where x is the cost for 5 grams.

 

 

Getting the proportion so that the units are in grams.
 

17 / 11 = 26.80 / x

 

 

Solve this equation for x.  Once you solved for x, round the value to the nearest hundredth.