Answer:
x = 45
Step-by-step explanation:
The average is calculated as
average =
here the average = 50 , thus
= 50
Multiply both sides by 4
36 + 44 + 75 + x = 200
155 + x = 200 ( subtract 155 from both sides )
x = 45
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2 answers:
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Answer:
Sum = $1.073
Interest = $0.073
Step-by-step explanation:
Given that $1 is invested for one year at 7.2% interest which compounds semi-annually.
Semi-annual means there should be two equal intervals in a year i.e. 6 months interval.
Now, the semi-annual rate of interest is %.
Therefore, the invested money will become
= $1.073
Therefore, the interest obtained will be $(1.073 - 1) = $0.073. ( Answer )