Question

the price of grapes at the grocery store is $1.44 per pound. there are approximately 0.45 kilograms in a pound. to the nearest cent, what is the price of grapes in dollars per kilogram?
○ $0.65 per kilogram
○ $0.99 per kilogram
○ $1.89 per kilogram
○ $3.20 per kilogram

Explanation:

Step1: Understand the conversion

We know the price per pound is $1.44, and 1 pound = 0.45 kilograms. We need to find the price per kilogram, so we can use the formula: Price per kilogram = $\frac{\text{Price per pound}}{\text{Kilograms per pound}}$.

Step2: Substitute the values

Substitute the given values into the formula. The price per pound is $1.44, and kilograms per pound is 0.45. So we calculate $\frac{1.44}{0.45}$.

Step3: Perform the division

Calculate $1.44 \div 0.45$. Let's do the division: $1.44 \div 0.45 = \frac{1.44}{0.45} = \frac{144}{45} = 3.2$. Wait, no, wait. Wait, 0.45 kilograms is 1 pound, so to find per kilogram, we need to see how much 1 kilogram costs. Wait, maybe I messed up the formula. Wait, if 0.45 kg costs $1.44, then 1 kg costs $1.44 / 0.45. Let's calculate that: 1.44 divided by 0.45. Let's multiply numerator and denominator by 100 to eliminate decimals: 144 / 45 = 3.2? Wait, but that's one of the options, option D: $3.20 per kilogram. Wait, but let's check again. Wait, 0.45 kg is 1 pound, so price per pound is $1.44. So price per kilogram is (1.44 dollars / pound) (1 pound / 0.45 kg) = 1.44 / 0.45 dollars per kg. 1.44 divided by 0.45: 0.45 3 = 1.35, 1.44 - 1.35 = 0.09, 0.09 / 0.45 = 0.2, so total is 3.2. So that's $3.20 per kilogram.

Answer:

D. $3.20 per kilogram