Question

plz say me the solution ​

Answer 1

Answer:

$10 = \frac{70}{70 + x} \times 100 \\ \frac{10}{100} = \frac{70}{70 + x} \\ \frac{1}{10} = \frac{7 0 }{70 + x} \\ 700 = 70 + x \\ 700 - 70 = x \\ x = 630$

i hope it helps

Answer 2

Answer:

$10 = \frac{70}{70 + x} \times 100 \\ \\ = > 10(70 + x) = 7000 \\ \\ = > 700 + 10x = 7000 \\ \\ = > 10x = 7000 - 700 = 6300 \\ \\ = > x = \frac{6300}{10} = 630$