Box a should have 30 pieces of chocolate and box b should have 20 pieces of chocolate
Answer:
150
Step-by-step explanation:
1:30=5:x
5*30=150
5:150=1:30
Answer: Well sampling is the process of choosing a representative sample from a target population and collecting data from that sample in order to understand something about the population as a whole. A data sample is a set of data collected and the world selected from a statistical population by a defined procedure.
Step-by-step explanation:
The cost of each duck is $ 7 and cost of each chicken is $ 12.
Step-by-step explanation:
Given,
5 chickens and 3 ducks are bought by $ 81
A chicken costs $ 5 more than a duck.
To find the cost of each duck and cost of each chicken.
Let,
The cost of each duck = x
The cost of each chicken = x+5
According to the problem,
5(x+5)+3x = 81
or, 5x+25+3x = 81
or, 8x = 81-25
or, 8x = 56
or, x = 7
Hence,
The cost of each duck = $ 7
The cost of each chicken = $ 7+5 = $ 12
1,2,3,4,6,7,12,14,21,28,42,84 are the prime factors of 84.
Therefore, the first four primes are: 1,2,3,7 so Mr. Nolans code is 1237.
