In the case of unlike denominators, common denominators must be
2 answers:
Answer:
True
Step-by-step explanation:
You could use any common multiple, but using the least common multiple is easier and faster, which is why it is usually recommended. For example:
In order to add, you need to find the least common multiple, which would be 12. (and you can't forget, what you do to the bottom, you must do to the top as well)
However, this is only necessary with addition and subtraction, not multiplication or division.
You might be interested in
The answers are:
18 to 24 =
5 to 15 =
14:42 =
15 cents to 18 cents =
Explanation:
To write a fraction using a ratio, simply use the first number as the numerator (top number), in this case, the numbers 18, 5, 14, and 15, and the second or biggest number as a denominator (bottom number), in this case, the numbers 24, 15, 42 and 18. This means the fractions are ,
,
, and
.
The second step is to reduce or simplify the fractions, which means the numbers in a fraction are divided by the same factor (a number that divides another without a remainder). Additionally, to do this, it is important to reduce the fraction to its minimum.
divide this by 6, which is equivalent to
divide this by 5, which is equivalent to
divide this by 14. which is equivalent to
divide this by 3, which is equivalent to
Answer:
The probability that she wins exactly once before she loses her initial capital is 0.243.
Step-by-step explanation:
The gambler commences with $30, i.e. she played 3 games.
Let <em>X</em> = number of games won by the gambler.
The probability of winning a game is, <em>p</em> = 0.10.
The random variable <em>X</em> follows a Binomial distribution, with probability mass function:
Compute the probability of exactly one winning as follows:
Thus, the probability that she wins exactly once before she loses her initial capital is 0.243.