How to solv e direct vatiation problems
1 answer:
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Answer:
The correct answer are given by (A) ; (B)
.
Step-by-step explanation:
Total number of entries to the sweepstakes offered by Gemini Paper Products = 175,000.
Total number of prizes to be awarded includes 1 grand prize, 3 first prizes, 25 second prizes and 400 third prizes = 1 + 3 + 25 + 400 = 429.
(A) Required Probability for a person who has put one entry to win the grand prize is given by the fraction .
(B) Required Probability for a person who has put one entry to win any prize offered is given by .
Answer:
Step-by-step explanation:
In this problem we have an exponential function of the form
where
a is the initial value
b is the base
The base is equal to
b=1+r
r is the average rate
In this problem we have
a=23,000 members
r=5%=5/100=0.05
b=1+0.05=1.05
substitute
x ----> is the number of years since 1985
How many members will there be in 2020?
x=2020-1985=35 years
substitute in the function
Round to the nearest thousand