Tom needs $150.00 to buy a stereo. Right now, he has $90.00.
2 answers:
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Answer:
The equations represent the situation is and
.
Step-by-step explanation:
Consider the provided information.
First convert the statement into mathematical representation.
Consider the smaller number is <em>x</em> and the larger number is <em>y</em>.
<em>y</em>, is equal to twice the sum of a smaller number and 3.
This information can be written as:
Which can be further solve as:
The larger number is also equal to 5 more than 3 times the smaller number.
This information can be written as:
Thus, the equations represent the situation is and
.
Which can be further solve as:
Now, substitute the value of <em>x</em> in .
Answer: 0.263169
Step-by-step explanation:
Since for every child there is two outcomes (either a boy or a girl), so it is a binomial distribution.
Let x = Number of boys
Given: probability that a child is a boy: p= 0.513
Binomial distribution formula :
Now, the probability that both children are boys=
The chance both children are boys = 0.263169