List three different combinations of coins each with a value of 30% of a dollar
2 answers:
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Part(A):
To solve the system of Linear equations using Substitution:
Consider the first equation, x+y=7 implies x=7-y
PArt(B): Use a graph to verify your answer to the system:
Using Desmos graphing calculator, graph the two equations.
Answer:
0.6 ;
0.7
Reaukt in B will give a better estimate because it has a larger sample size (120) than the result on A ,with sample size (30)
Step-by-step explanation:
Probability of hitting the target using Tuesday's result :
P(hitting the target):
Probability = required outcome / Total possible outcomes
Required outcome = number of hits = 18
Total possible outcomes = number of throws =. 30
Hence, Probability of hitting the target using Tuesday's result : 18 / 30 = 0.6
B.)
Probability of hitting the target using Total result:
Required outcome = number of hits = 84
Total possible outcomes = number of throws =. 120
= 84 / 120
= 0.7
The answer is 
or (x + 1.2) ÷ 5 = 3.6
or (x + 1.2) ÷ 5 = 3.6