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3 years ago

Find the third number if their average is 6 and two of them are 6 and 7

Mathematics

2 answers:

lorasvet [3.4K]3 years ago

8 0

Answer:

Step-by-step explanation:

If their average is 6 and there are three numbers in total, the total sum of the three numbers would be:

6×3 = 18

You know that two of them is 6 and 7, so you can find the last number easily.

18-6-7 = 5

8_murik_8 [283]3 years ago

4 0

Answer:

Step-by-step explanation:

6 +7+5 = 18 and 18/3 = 6

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Check the picture below.

$\bf \textit{using the pythagorean theorem}
\\\\
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\end{cases}
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Find the third number if their average is 6 and two of them are 6 and 7​

Find the third number if their average is 6 and two of them are 6 and 7