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פּוֹפּוּלָרִי Word Problems >

if 2/3 of a number is-21 find the number

פתרון

i f \frac{2}{3} o f a n u mb er i s - 21 f in d t h e n u mb er

פתרון

The number : - 31 \frac{1}{2}

צעדי פתרון

Represent the number with

x

A.T.Q.:

\frac{2}{3} x = - 21

\frac{2}{3} x = - 21, x

פתור בשביל:

x = - \frac{63}{2}

הסב שבר מדומה למספר מעורב:

\frac{63}{2} = 31 \frac{1}{2}

The number : - 31 \frac{1}{2}

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