Answer: So, you have 16 trays of hot food, and each box can have a maximum of 5 trays.
a) if each box can have 5 trays then:
1 box can delivery 5 trays, that is not enough.
2 boxes can delivery 10 trays, that is not enough
3 boxes can delivery 15 trays, almost, but not enough
4 boxes can delivery 20 trays, this is it!
You also can see it in the next way: 16 trays/5 trays per box = 3.2 boxes.
But you can't use a 0.2 of a box, so here we need to round upwards!
3.2 rounded upwards is 4.
b) If you have 4 boxes, then you have 20 spaces for trays.
if each box is filled, you will put the first 15 trays in 3 boxes and fill them, and one leftover tray will go in the fourth box.
so this last box has one of five trays, this means that has 4 slots empty.
then the empty fraction is the empty slots divided by the total number of slots, this is: 4/5.
Answer:
a. 4 boxes are necessary to make the delivery.
b. The fraction empty of the last box will be 4/5
Step-by-step explanation:
The caterer has 16 trays and each box can hold 5 trays.
a. So, to know how many warming boxes we need we have to divide the total amount of trays by the amount the box can hold.
Quantity of boxes= 16/5=3.2
3 boxes wont hold all the trays , so we will need 4 boxes
b. Each box can hold 5 trays ,
The first 3 boxes will hold 15 trays. So last box will hold 1 tray , in fraction is 1/5
1/5 of the last box is occupated
The empty space is 1- 1/5=
The fractions have unlike denominators. First, we find the Least Common Denominator and rewrite the fractions with the common denominator.
1- 1/5= 5/5- 1/5= 5-1/5=4/5
The fraction empty of the last box will be 4/5
