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2 years ago

Solve the given proportion for x. Answer to two decimal places. x/5=16/21

Mathematics

2 answers:

Anarel [89]2 years ago

5 0

Step-by-step explanation:

$\frac{x}{5} = \frac{16}{21} \\ by \: cross \: multiplication \\ x \times 21 = 5 \times 16 \\ 21x = 80 \\ x = \frac{80}{21} \\ x = 3.8$

Angelina_Jolie [31]2 years ago

3 0

$\\ \sf\longmapsto \dfrac{x}{5}=\dfrac{16}{21}$

$\\ \sf\longmapsto 21x=16(5)$

$\\ \sf\longmapsto 21x=80$

$\\ \sf\longmapsto x=\dfrac{80}{21}$

$\\ \sf\longmapsto x=3.6$

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