6 kg of potatoes cost 12.90 dollars . How many kilograms of potatoes can you get with 8 dollars?

6/12.9 = x/8

Cross multiply and solve for x.

42

To find out how many kilograms of potatoes you can get with 8 dollars, we can set up a proportion using the given information.

Let's let x represent the number of kilograms of potatoes.

We know that 6 kg of potatoes cost 12.90 dollars. So, the cost per kilogram of potatoes is 12.90 dollars / 6 kg = 2.15 dollars/kg.

Now we can set up the proportion:
2.15 dollars/kg = 8 dollars/x kg

To solve this proportion, we can cross-multiply:
2.15 * x = 8 * 1
2.15x = 8
x = 8 / 2.15

Calculating this, we find:
x ≈ 3.72 kg

Therefore, with 8 dollars, you can get approximately 3.72 kilograms of potatoes.

To find out how many kilograms of potatoes you can get with 8 dollars, we need to determine the cost of potatoes per kilogram.

Given that 6 kg of potatoes cost 12.90 dollars, we can find the cost per kilogram by dividing the total cost by the number of kilograms:

Cost per kilogram = Total cost / Number of kilograms
Cost per kilogram = 12.90 dollars / 6 kg

To calculate this, divide 12.90 by 6:

Cost per kilogram = 2.15 dollars/kg (rounded to two decimal places)

Now that we know the cost per kilogram, we can determine how many kilograms of potatoes we can get with 8 dollars.

To do this, divide the total amount by the cost per kilogram:

Number of kilograms = Total dollars / Cost per kilogram
Number of kilograms = 8 dollars / 2.15 dollars/kg

Now, calculate this division:

Number of kilograms ≈ 3.72 kg (rounded to two decimal places)

Therefore, with 8 dollars, you can buy approximately 3.72 kilograms of potatoes.