If you know you have six books in total, then calculating the probability of the other two possible outcomes should be easy.
*P that 1 will have a red cover = 3/6 (which, if you simplify it, should be equal to 1/2)
*P that 1 will have a blue cover = 3/6 (which again, if you simplify it, should be equal to 1/2)
Consider the provided phrase.
Four times the sum of five and a number
Let the number is n and the sum of five and a number can be written as:

Thus, four times the sum of five and a number can be written as:

Hence, the required expression is
.
What is phrase in math?
In mathematics, we may use a phrase to describe an expression. When we describe an expression in words that incorporates a variable, we are doing so by using an algebraic expression. An example of this may be the phrase "greater than" (an expression with a variable).
run the numbers. to conduct a rational analysis of an issue. You can do the math because I was the last person to depart yesterday night and the first person to arrive this morning, and since only the overweight security guy was present. on April 7, 2005, by Dave L. Flag.
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Set up a proportion. 3.50 over 5 = x over 1 (x is what we are trying to find= the cost of 1 lb of apples)
Use cross products and multiply 3.50 by 1 to get 3.50 and then divide that by 5 to get 0.7.
So the apple cost 0.7 or seventy cents per pound.
Check: 0.7*5=3.5
That is correct!
Hope this helps!
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12 × 12 would equal to 144
Hope this helped! :D