Answer:
Exact form - x= - 22/5
Decimal form - x=-4.4
Mixed Number form - x= -4 2/5
Step-by-step explanation: Isolate the variable by dividing each side by your factors that don't contain variables.
Answer:
Proved
Step-by-step explanation:
Solving (a):
Let the numbers be:
Their sum is:
Collect Like Terms
Divide sum by 3.
<em>Hence, this is true because there is no fractional part after the division</em>
<em></em>
Solving (b):
Let the numbers be:
Their sum is:
Collect Like Terms
Divide sum by 5.
<em>Hence, this is true because there is no fractional part after the division</em>
<em></em>
Solving (c):
Let the numbers be:
Their sum is:
Collect Like Terms
Divide sum by 4.
Split
<em>The 1.5 means that the sum can not be divisible by 4</em>
Answer:
91.02% probability of selling more than 4 properties in one week.
Step-by-step explanation:
For each property, there are only two possible outcomes. Either it is sold, or it is not. The chance of selling any one property is independent of selling another property. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
In this problem we have that:
Compute the probability of selling more than 4 properties in one week.
Either you sell 4 or less properties in one week, or you sell more. The sum of the probabilities of these events is decimal 1. So
We want to find . So
In which
So
So
Finally
91.02% probability of selling more than 4 properties in one week.