45 Cards
12 friends invited; 1/2 came 12 x 1/2=6
Let x stand for the number of cards each friend received
Armando kept 3
6x = 45-3
6x = 42
__ __
6 6
x = 7
Each friend received 7 cards
Answer: The number of rolls of paper is
.
Step-by-step explanation: Given that Andy is hanging wallpaper in his kitchen. 6 rolls of wallpaper is used to cover
of the walls.
We are to find the number of rolls of paper used per wall.
We will be using unitary method to solve the given problem.
We have,

Now, number of rolls used to cover
of the walls = 6.
Therefore, number of rolls used to cover 1 wall is given by

Thus,
rolls of paper used per wall.
Answer
4 doughnuts
Step-by-step explanation:
.25 times 2 is .5
5.5-.5=5
5/1.25=4
Spend 45 minutes in the gym, then spend the rest hour and 15 minutes in the pool.