Jennifer M.
asked • 11/14/19Tom must choose a number between 55 and 101 that is a multiple 3,5 and 9.
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1 Expert Answer
The LCM of 3, 5, and 9 that falls between 55 and 101 is 72.
Additionally, 90 is a multiple of 3, 5, and 9 and falls between 55 and 101.
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Celeste M.
Hi Jennifer! The answer would be 90. 1. Divisibility rules - 5: If the number ends in 5 or 0 - 3: if the number adds up to a number that is divisible by 3 (i.e. 30; 3+0=3) - 9: if the number adds to a number that is divisible by 9 (i.e. 90; 9+0=90) 2. the numbers between 55 and 101 that are divisible by 5 (b/c it's easier to do all the numbers that end in 5 or 0) are 55,60,65,70,75,80,85,90,95, and 100 3. add the numbers together separately and you should get 90 b/c 9+0=9 which is divisible by 3 and 9; also because 90 is divisible by 5! I hope this helps with explaining the answer!01/01/20