Lois bought 2.8 pounds of beef for 4.76. How much did one pound of beef cost?

Question

Finding the cost of one pound of beef.

Answer 1

First I'd set it up as an equation

 

$4.76/2.8lb = x/1lb 

 

2.8 lbs is two and a half pound since there are 16ozs in a pound.

 

Second cross multiply:

 

So 4.76 * 1lb is on top because the top number of the first fraction is always the top and the bottom number of the first fraction is always the bottom in solving an equation such as this. So the bottom would be 2.8lb * x. Giving you:

 

4.76lb= 2.8lbx =

 

The pounds cancel each other out when you divide to solve for x.

 

Final step solve for x:

 

4.76/2.8= 1.7=x 

 

So one pound of beef cost $1.70. 

 

 

Answer 2

Divide the purchase price by the number of pounds purchased.

 

($4.76)/(2.8 lbs) = ? dollars per pound