Ling is 1 year less than twice as old as his sister. If the sum of their ages is 14 years how old is Ling
1 answer:
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Answer:
Step-by-step explanation:
See comment for complete question
Given:
Required
The information that shows by SSS
By SSS implies that, the three sides of both triangles are congruent
Already, we have:
The third side of is
The third side of is
So, for both to be congruent by SSS, the third sides must be congruent
i.e.
Answer:
.
Step-by-step explanation:
Probability that the car encounters a green light on the first day: .
To meet the question's conditions, the car needs to encounter another green light on the second day. Given that the colors of the light on each day are "independent," the chance that there's a green light followed by another green light will be
.
- Condition is met on the first two days and green light on the third day:
.
- Condition is met on the first three days and green light on the fourth day:
.
To meet the condition on the fifth day, there needs to be a yellow light. The probability that the condition is met on the first four days and on the fifth day will be .
To meet the condition on the sixth day, all prior days should meet the conditions. Besides, there needs to be a red light on the sixth day.
- Seventh day:
- Eighth day:
- Ninth day:
- Tenth day:
The question asks that the condition be met on all ten days. As a result, the probability of meeting the condition will be equal to the probability on the tenth day: .