¿Cuánto Gasta María En Papas Y Arroz?
Let's figure out how much Doña María spent at the supermarket! This is a classic math problem where we need to calculate the cost of each item separately and then add them together to find the total cost. Think of it as breaking down her shopping list into smaller, more manageable chunks. So, grab your calculators, guys, and let's get started!
Calculating the Cost of Potatoes
Okay, so Doña María bought 2.8 kg of potatoes, and each kilogram costs S/.1.2. To find the total cost of the potatoes, we need to multiply the quantity (2.8 kg) by the price per kilogram (S/.1.2).
Cost of Potatoes = Quantity of Potatoes × Price per kg
Cost of Potatoes = 2.8 kg × S/.1.2/kg
When we do the math, 2.8 multiplied by 1.2 equals 3.36. Therefore, the total cost of the potatoes is S/.3.36. So, Doña María spent S/.3.36 on potatoes. Make sure you double-check your calculations to ensure accuracy. This is a crucial step to avoid any errors in the final answer. Remember, in math, precision is key!
Now, let’s break this down a bit further. Imagine you're at the supermarket yourself. You see those lovely potatoes, and they're priced at S/.1.2 per kg. You decide you need 2.8 kg for your delicious potato recipe. To figure out how much you’ll need to pay, you simply multiply the amount you're buying by the price. This is an everyday application of math that we often take for granted. It's super useful to understand these basic calculations to manage your budget effectively and ensure you're getting the best deals while shopping. Whether you’re buying vegetables, fruits, or any other item sold by weight, this simple multiplication trick will always come in handy. Plus, understanding these calculations can help you estimate the cost even before you get to the checkout, preventing any surprises when you see the final bill!
Calculating the Cost of Rice
Next up, we need to calculate the cost of the rice. Doña María bought 6 kg of rice, and each kilogram costs S/.3.24. Just like with the potatoes, we need to multiply the quantity (6 kg) by the price per kilogram (S/.3.24) to find the total cost.
Cost of Rice = Quantity of Rice × Price per kg
Cost of Rice = 6 kg × S/.3.24/kg
When we multiply 6 by 3.24, we get 19.44. So, the total cost of the rice is S/.19.44. This means Doña María spent S/.19.44 on rice. Again, double-check your calculation to make sure everything is correct. This ensures we have an accurate figure for the total cost of the rice, which we will need to calculate the final amount she spent at the supermarket.
Let’s think about why this calculation is important in real life. Rice is a staple food in many households, and buying it in bulk can often save money. However, it’s essential to know exactly how much you're spending to stay within your budget. For instance, if you’re planning a big family dinner and need to buy a larger quantity of rice, knowing the price per kilogram will help you estimate the total cost accurately. This way, you can make informed decisions about your purchases and avoid overspending. Furthermore, understanding how to calculate the cost of items sold by weight allows you to compare prices from different stores and choose the most economical option. So, whether you’re a student, a parent, or just someone who wants to manage their finances better, mastering these basic calculations can be incredibly beneficial. It's all about being smart with your money and making informed purchasing decisions.
Finding the Total Cost
Now that we know the cost of the potatoes (S/.3.36) and the cost of the rice (S/.19.44), we can find the total amount Doña María spent by adding these two amounts together.
Total Cost = Cost of Potatoes + Cost of Rice
Total Cost = S/.3.36 + S/.19.44
Adding these two amounts together, we get:
Total Cost = S/.22.80
Therefore, Doña María spent a total of S/.22.80 on her purchase. This is the final answer to our problem. We've successfully calculated the cost of each item and then added them together to find the total amount spent. Great job, guys!
To recap, we first calculated the cost of the potatoes by multiplying the quantity she bought by the price per kilogram. Then, we did the same for the rice. Finally, we added the two amounts together to arrive at the total cost. This step-by-step approach is essential for solving similar problems and ensures that we don't miss any crucial details. Remember, breaking down a problem into smaller, manageable steps can make it much easier to solve.
Why This Matters
Understanding how to calculate these costs isn't just about solving math problems; it's about real-life application. Imagine you're planning a meal and need to buy ingredients. Knowing the price per unit (like per kilogram) helps you estimate the total cost of your ingredients, allowing you to stay within your budget. Moreover, these skills come in handy when comparing prices at different stores. By calculating the cost per unit, you can quickly determine which store offers the best deal, ultimately saving you money.
*Budgeting: Planning your expenses effectively. *Comparison Shopping: Finding the best deals. *Avoiding Overspending: Staying within your financial limits.
In conclusion, whether you’re a student learning basic math or an adult managing household expenses, these calculations are essential for making informed decisions and managing your finances wisely. So, keep practicing, and you'll become a pro at calculating costs in no time!
Final Answer
So, to wrap it all up, Doña María spent a total of S/.22.80 at the supermarket. We calculated the cost of the potatoes, then the cost of the rice, and finally added those two amounts together to get the total. You did it, guys! Understanding these basic calculations is super helpful in everyday life, so keep practicing and you'll be a math whiz in no time!
