It depends on what the question looks like. If it looks like this:
(6-3)(2/5)=
(3)(0.4)=
1.2
<span> The geometric mean of two non negative numbers x and y is √(xy). (mean square root of XY)
So the geometric mean of 2/3 and 27/40 is
√(2/3 * 27/40)
= √(54 / 120)
= √(27 / 60)
= √(9 / 20)
= 3 / √20
= 3 / 2√5
= 3√5 / 10. </span>
She would have $23.52 because 12 times 3 is 36 and 36-12.48=23.52
The algebraic expression for twice difference of a number (n) and 6 is expressed algebraically as, 2(n - 6).
<h3>What is an Algebraic Expression?</h3>
An algebraic expression can be used to model word problem or a situation with the use of variables, operation signs and numbers.
Difference is minus (-)
Let n represent the unknown number.
Thus, twice difference of a number (n) and 6 is expressed algebraically as, 2(n - 6).
Learn more about algebraic expressions on:
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