Final answer:
To express the pounds of pork Hilda bought in a decimal, we need to subtract the pounds of beef from the total pounds of meat Hilda bought. The correct answer is 0.72 pounds.
Step-by-step explanation:
To express the pounds of pork Hilda bought in a decimal, we need to subtract the pounds of beef from the total pounds of meat Hilda bought, which is 18/25 pounds.
Let's assume the pounds of pork Hilda bought is 'x'. Then, the pounds of beef she bought would be 18/25 - x.
To convert 18/25 to decimal, we divide 18 by 25: 18 ÷ 25 = 0.72.
So, the equation becomes: x + 18/25 - x = 0.72.
When we solve for x, we find that x = 0.72 - 18/25 = 0.72 - 0.72 = 0
Therefore, Hilda did not buy any pounds of pork, so the correct answer is option c) 0.72 pounds.