If peter eats peanut butter jelly everyday for lunch using 30 grams of and 40 per sandwich how many 1kilo containers each would he need to make his weeks?

Given Information:

- Peter eats peanut butter and jelly sandwiches every day for lunch.

- Each sandwich uses 30 grams of peanut butter and 40 grams of jelly.

- He wants to make enough sandwiches for a week (assuming 7 days).

- We need to determine how many 1-kilogram containers of peanut butter and jelly he will need.

Calculations:

Step 1: Calculate the Total Amount of Peanut Butter Needed for the Week

- Total peanut butter needed = (30 grams per sandwich) * (7 sandwiches per week)

= 210 grams

Step 2: Calculate the Total Amount of Jelly Needed for the Week

- Total jelly needed = (40 grams per sandwich) * (7 sandwiches per week)

= 280 grams

Step 3: Convert Grams to Kilograms

- Convert both peanut butter and jelly amounts to kilograms:

- 210 grams = 0.21 kilograms (for peanut butter)

- 280 grams = 0.28 kilograms (for jelly)

Step 4: Determine the Number of 1-Kilogram Containers Needed

- To find the number of containers, divide the total amount needed by the container size of 1 kilogram.

For Peanut Butter:

- Number of containers = 0.21 kg (total peanut butter needed) / 1 kg (container size)

= 0.21 containers (rounded to the nearest whole number, it's 0 containers)

For Jelly:

- Number of containers = 0.28 kg (total jelly needed) / 1 kg (container size)

= 0.28 containers (rounded to the nearest whole number, it's 0 containers)

Conclusion:

Based on the given information, Peter would not need to buy any 1-kilogram containers of peanut butter or jelly to make his sandwiches for the week since the amounts required are too small to warrant a whole container. He may consider buying smaller packages of peanut butter and jelly to avoid wastage.