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Write down three integers all less than 25, range is ten and mean is thirteen

User Arlyne
by
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1 Answer

9 votes

Answer:

9, 11 and 19

Explanation:

the first two integers I've picked are 19 and 9 because it gives a range of 10 and is less than 25

the range is the bigger number - smaller number

19 - 9 = 10

to find the third number we are given mean = 13


mean \: = \: (sum \: of \: all \: numers)/(how \: many \: numbers \: there \: are)

the third number = x


13 = (19 + 9 + x)/(3)

multiply both sides by 3 to get rid of the fraction


13 * 3 = 19 + 9 + x


39 = 28 + x

subtract both sides by 28


39 - 28 = x


x = 11

the third number is 11

the three integers are 9, 11 and 19

there are two other possible answers:

8, 13 and 18

7, 15 and 17

User Cedric
by
8.1k points

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