Final answer:
a) The cost per 100 grams of Swiss cheese is $1.20. b) 250 grams of Swiss cheese would cost $3.00. c) 1 kg of Swiss cheese would cost $12.00. d) With $18, you could buy 1500 grams of Swiss cheese.
Step-by-step explanation:
a) To find the cost per 100 grams, we can set up a proportion. The package of Swiss cheese weighs 400 grams and costs $4.80. Let's call the cost per 100 grams x. The proportion is:
400 g / $4.80 = 100 g / x
Cross multiplying, we get:
400 * x = 100 * $4.80
x = 100 * $4.80 / 400
x = $1.20
Therefore, the cost per 100 grams is $1.20.
b) To find the cost of 250 grams, we can use the formula:
Cost = (Weight / 100) * Cost Per 100 grams
Plugging in the values, we get:
Cost = (250 / 100) * $1.20 = $3.00
Therefore, 250 grams would cost $3.00.
c) To find the cost of 1 kg, we can use the same formula:
Cost = (Weight / 100) * Cost Per 100 grams
Plugging in the values, we get:
Cost = (1000 / 100) * $1.20 = $12.00
Therefore, 1 kg would cost $12.00.
d) To find how much Swiss cheese you could buy with $18, we can use the formula:
Weight = (Amount / Cost Per 100 grams) * 100
Plugging in the values, we get:
Weight = ($18 / $1.20) * 100 = 1500 grams
Therefore, with $18, you could buy 1500 grams of Swiss cheese.