kelly bought 2 kilograms of rice and half kilograms of meat from the supermarket. The cost of 5 kilograms of rice was $13. She spent $9.80 in all. How much did 1 kilogram of meat cost?
2 kg rice (13/5) = 26/5 = $5.20 for rice
9.80 - 5.20 = $4.60 for meat
$4.60 = meat price * .5 kg
meat price = $9.20 / kg
To find out the cost of 1 kilogram of meat, we need to break down the information given.
Let's start with the cost of rice. It is given that 5 kilograms of rice costs $13. So, we can calculate the cost of 1 kilogram of rice using the equation:
Cost of 1 kilogram of rice = Cost of 5 kilograms of rice / 5
Substituting the given values, we get:
Cost of 1 kilogram of rice = $13 / 5 = $2.60
Next, we need to determine the cost of 2 kilograms of rice, which is $2.60 per kilogram. The total cost of rice can be calculated by multiplying the cost per kilogram with the number of kilograms:
Cost of 2 kilograms of rice = Cost per kilogram × Number of kilograms = $2.60 × 2 = $5.20
Now, we know that Kelly spent a total of $9.80, which includes the cost of rice and meat. To find the cost of meat, we can subtract the cost of rice from the total amount:
Cost of meat = Total cost - Cost of rice = $9.80 - $5.20 = $4.60
Finally, to determine the cost of 1 kilogram of meat, we divide the total cost of meat by the weight of meat purchased:
Cost of 1 kilogram of meat = Cost of meat / Weight of meat purchased
Cost of 1 kilogram of meat = $4.60 / 0.5 kilogram = $9.20
Therefore, 1 kilogram of meat costs $9.20.