What is (1.4)/3 (1.3+4(1.6)+2(1.8)+4(1.9)+2(2.2)+4(2.3)+2.1) ?

The solution to (1.4)/3 (1.3+4(1.6)+2(1.8)+4(1.9)+2(2.2)+4(2.3)+2.1) is 1211/75

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simplify (1.4)/3 (1.3+4(1.6)+2(1.8)+4(1.9)+2(2.2)+4(2.3)+2.1)

simplify

\frac{1.4}{3} (1.3 + 4 (1.6) + 2 (1.8) + 4 (1.9) + 2 (2.2) + 4 (2.3) + 2.1)

\frac{1211}{75}

Decimal Notation

16.14666 \dots

Solution steps

\frac{1.4}{3} (1.3 + 4 (1.6) + 2 (1.8) + 4 (1.9) + 2 (2.2) + 4 (2.3) + 2.1)

\frac{1.4}{3} = \frac{14}{30}

= \frac{14}{30} (1.3 + 4 \cdot 1.6 + 2 \cdot 1.8 + 4 \cdot 1.9 + 2 \cdot 2.2 + 4 \cdot 2.3 + 2.1)

Cancel

\frac{14}{30} : \frac{7}{15}

= \frac{7}{15} (1.3 + 4 \cdot 1.6 + 2 \cdot 1.8 + 4 \cdot 1.9 + 2 \cdot 2.2 + 4 \cdot 2.3 + 2.1)

1.3 + 4 \cdot 1.6 + 2 \cdot 1.8 + 4 \cdot 1.9 + 2 \cdot 2.2 + 4 \cdot 2.3 + 2.1 = 34.6

= \frac{7}{15} \cdot 34.6

34.6 = \frac{173}{5}

= \frac{7}{15} \cdot \frac{173}{5}

\frac{7}{15} \cdot \frac{173}{5} = \frac{1211}{75}

= \frac{1211}{75}

(x^{2} - 16)^{2}

(\frac{39}{2})^{2} - (\frac{15}{2})^{2} = x^{2}

\frac{( - 3 ) ^{2} - 2 x - 4}{- 2} > - 4

\frac{x + 1}{x - 1} < 2

(x - 5) (x - 12) = 44

What is (1.4)/3 (1.3+4(1.6)+2(1.8)+4(1.9)+2(2.2)+4(2.3)+2.1) ?
The solution to (1.4)/3 (1.3+4(1.6)+2(1.8)+4(1.9)+2(2.2)+4(2.3)+2.1) is 1211/75