3 years ago

A + 3(a - 1)= 3(2 +1)

Mathematics

1 answer:

N76 [4]3 years ago

5 0

A+3a-3=6+3. 4a=12. a=3.

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liubo4ka [24]

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$\\ \sf\longmapsto π(0.7)^2h=231$

$\\ \sf\longmapsto 0.49πh=231$

$\\ \sf\longmapsto πh=\dfrac{231}{0.49}$

$\\ \sf\longmapsto 3.14h=471.4$

$\\ \sf\longmapsto h=\dfrac{471.4}{3.14}$

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