You plan a party. You want to invite 30 children. You want to give them each one fifth of pizza.
How many pizzas do you need?
You have one pizza left after the party. How many children did not come?
To give each of the 30 children one fifth of pizza, you need a total of:
30 x 1/5 = 6 pizzas
If you have one pizza left after the party, it means you only used:
6 - 1 = 5 pizzas
To find out how many children did not come, you need to know how many fifths of pizza are in one pizza:
1 pizza = 5/5
So if you had 5 pizzas, that means you had:
5 x 5/5 = 25 fifths of pizza
Since you wanted to give each child one fifth of pizza and you have 25 fifths of pizza, it means:
25 children came to the party
Therefore, the number of children that did not come is:
30 - 25 = 5 children.
To find out how many pizzas you need, you first need to determine how much pizza each child will get. Since you want to give each child one fifth of a pizza, divide the total number of pizzas by the number of children.
1. Find out how much pizza each child will get:
1 pizza / 5 = 1/5 pizza per child
Next, calculate the total number of pizzas needed for 30 children:
2. Determine the total number of pizzas needed:
30 children x (1/5 pizza per child) = 6 pizzas
Therefore, you need 6 pizzas to give each of the 30 children one fifth of a pizza.
Now, let's calculate how many children did not come to the party:
3. Calculate the number of children who did not come:
Total children invited - Children who attended = Children who did not come
30 children - 1 child (because there was still one pizza left) = 29 children
Therefore, 29 children did not come to the party.
To find out how many pizzas you need for 30 children, you first need to determine how much pizza each child will receive. Since each child is getting one-fifth (1/5) of a pizza, you can divide the total number of pizzas needed by the fraction representing the portion each child will receive.
To calculate the number of pizzas needed:
1. Multiply the number of children (30) by the fraction representing the portion each child will have, which is 1/5.
30 children × (1/5) = 30/5 = 6 pizzas
Therefore, you will need 6 pizzas for the 30 children.
Now, to find out how many children did not come to the party based on the information that you have one pizza left:
1. Determine the number of slices in one pizza. Let's assume that each pizza has 8 slices.
2. Calculate the total number of pizza slices you have, which is the number of pizzas (6) multiplied by the number of slices in each pizza (8).
6 pizzas × 8 slices = 48 slices
To find out how many children did not come to the party, divide the total number of pizza slices leftover by the portion of pizza each child would have received (1/5).
48 slices ÷ (1/5) = 48 slices ÷ 1/5 = 48 slices × 5/1 = 48 × 5 = 240
Therefore, 240 children did not come to the party.