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stepladder [879]
3 years ago
6

4) Find the LCM of 20 and 9​

Mathematics
2 answers:
allsm [11]3 years ago
8 0
180 is the least common multiple.
hodyreva [135]3 years ago
4 0

Answer:

least common multiple is 180

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<span>480/1 hope this help</span>
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Marianne has 5/8 pound of peas she cooks 2/3 of those peas for five people if each person is served an equal amount how much pea
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Weight of cooked peas is (2/3)(5 lb/8) = (10/24) lb, or (5/12) lb.

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5
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3 years ago
Find the number of ways to listen to four CDs from a selection of 8 CDs. A) 1680 B) 336 C) 70 D) 50 pls aslo explain why..
777dan777 [17]

Answer:

a) 1680

<em>The number of ways to listen to four CDs from a selection of 8 CDs = 1680</em>

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given data the number of CD' s n = 8

<em>We have to selected '4' CD' s  from total '8' CD's</em>

<em>By using permutations </em>

<em>The number of ways to listen to four CDs from a selection of 8 CDs.</em>

<em>                          =     </em>8_{P_{4} }<em> </em>

<em>  we know that </em>

           n_{P_{r} } = \frac{n!}{(n-r)!}

          8_{P_{4} } = \frac{8!}{(8-4)!} = \frac{8 X 7 X 6 x 5 X 4!}{4!} = 1680

<em>The number of ways to listen to four CDs from a selection of 8 CDs = 1680</em>

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Step-by-step explanation:

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