A little girl has a 96-pack of crayons. She picks up crayons, at random, to check the color, and she leaves them in a separate p
ile after inspecting the color. She pulls crayons out of the pack until she gets the sea-foam green crayon.
What is the expected number of crayons she will check until she finds sea-foam green?
What is the expected number of crayons she will check until she finds sea-foam green?
1 answer:
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Answer:
The answer is below
Step-by-step explanation:
a) Cost of hiring the bicycle for 14 days is:
Cost = 65 * 14 days + 44 = 954 riyals
b) The number of days the bicycle is hired is to be the same as the number of days the bicycle is to be hired. Let us assume that the bicycle and helmet is to be hired for x days, hence:
Cost of bicycle = 65 * x + 14 = 65x + 44
Cost of helmet = 12.5 * x = 12.5x
Total cost = 65x + 44 + 12.5x = 77.5x + 44
Since 750 riyals is available, hence:
750 = 77.5x + 44
77.5x = 706
x = 9.11
Therefore the maximum number of days is 11. The total cost for 11 days is:
Total cost = 77.5(9) + 44 = 741.5 riyals
Money not spent = 750 riyals - 741.5 riyals = 8.5 riyals
Answer:
Step-by-step explanation:
Point slope form: , where n=slope , (a,b) is the point through which line passes.
If slope of the line = m and line passes through and
:-
So, the equivalent equations are :