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פּוֹפּוּלָרִי Word Problems >

for the set of three consecutive odd integers, three times the largest integer is 7 less than twice the sum of the other two integers. what is the largest integer in the set?

פתרון

f or t h e se t o f t h ree co n sec u t i v e o dd in t e g ers, t h ree t im es t h e l a r g es t in t e g er i s 7 l ess t han tw i ce t h e s u m o f t h e o t h er tw o in t e g ers . w ha t i s t h e l a r g es t in t e g er in t h e se t ?

פתרון

אין פתרון

צעדי פתרון

Represent the numbers with

x

:

First number : x

Consecutive number 1 : x + 2

Consecutive number 2 : x + 4

A.T.Q.:

3 (x + 4) = 2 \cdot 7 - 2 (x + x + 2 + x + 4) - 7

3 (x + 4) = 2 \cdot 7 - 2 (x + x + 2 + x + 4) - 7

פתור את:

x = - \frac{17}{9}

x + 2 = - \frac{17}{9} + 2 = \frac{1}{9}

x + 4 = - \frac{17}{9} + 4 = \frac{19}{9}

Even value

\frac{1}{9}

discarded

אין פתרון

דוגמאות פופולריות

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