Laura has a total of 13 books. To pick 3 out of this 13 books is expressed as 13C3 which is equal to 286. Now to pick a science and 2 mathematics books may be expressed as,
(4C2) x (6C1) = 36
The probability is the quotient when 36 is dived by 286. The answer is 18/143 which is approximately equal to 0.126.
Answer:
2 : 3
because 12 : 18 can be simplified to 6 : 9, simplified even more can be 2 : 3
Yes because when you turn into a decimal it's 7.2
<h3>
Answer is 5(6a+7)</h3>
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The GCF is 5, which can be factored out of the expression
Note how
30a = 5*6a
35 = 5*7
So we see the common factor between the two terms. You use the distribution property to pull out that 5. If you were do distribute the 5 back in, you'd get
5(6a+7) = 5*6a+5*7 = 30a+35
B is true for both inequalities.
