James bought 22 candy bars for $137. If the king size candy bars cost $8 and a regular size candy bar cost $5 , how many of each
1 answer:
Given:
James bought 22 candy bars for $137.
If the king size candy bars cost $8 and a regular size candy bar cost $5.
To find:
The system of equation and solution of it.
Solution:
Let x be the number of king size candy and y be the number of regular size candy.
Quantity: ...(i)
Cost : ...(ii)
Multiply the equation (i) by 5.
...(iii)
Subtract (iii) from (ii).
Put x=9 in (i).
Therefore, number of king size candy is 9 and number of regular size candy is 13.
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Answer:
The no. of possible handshakes takes place are 45.
Step-by-step explanation:
Given : There are 10 people in the party .
To Find: Assuming all 10 people at the party each shake hands with every other person (but not themselves, obviously) exactly once, how many handshakes take place?
Solution:
We are given that there are 10 people in the party
No. of people involved in one handshake = 2
To find the no. of possible handshakes between 10 people we will use combination over here
Formula :
n = 10
r= 2
Substitute the values in the formula
No. of possible handshakes are 45
Hence The no. of possible handshakes takes place are 45.