Answer:
<h2>
x
- x - 6</h2><h2 />
Step-by-step explanation:
Multiply each term in the first parentheses by each term in the second parentheses ( FOIL)
Calculate the product
Collect like terms
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Should be chosen the bigger propability
0,6>0,4
Answer:
a=9
Step-by-step explanation:
To solve this proportion, we have to get the variable, a, by itself.
First, cross multiply.
6/a=18/27
Multiply the denominator of the first fraction by the numerator of the second, and the numerator of the second by the denominator of the first.
a*18=6*27
18a=162
Now, 18 and a are being multiplied. In order to get a by itself, perform the opposite of what is being done. They are being multiplied, so the opposite would be division. Divide both sides by 18.
18a/18=162/18
a=162/18
a=9
So, the proportion, with 9 substituted in for a, will be:
6/9=18/27
