Question

20 ) If you subtract 1/4 from a number and multiply the result by 3/4, you get 9/14 .what is the number ?​

Answer 1

Answer:

solution, let the number be x, (x-1/2)1/2=1/8 so we need to solve this, 2x-1/2 * 1/2 = 1/8 2x-1/2=1/8*2/1=1/4 2x-1 /2=1/4 so, 2x=1/4+1/2=6/8=3/4 hence, 2x=3/4, so, x=3/8.

Answer 2

Step-by-step explanation:

$(x - \frac{1}{4} ) \times \frac{3}{4} = \frac{9}{14} \\ \\ ( \frac{4x - 1}{4} ) \times \frac{3}{4} = \frac{9}{14} \\ \\ \frac{12x - 3}{16} = \frac{9}{14} \\ \\ \frac{12x - 3}{8} = \frac{9}{7} \\ \\ 84x - 21 = 72 \\ \\ 84x = 72 + 21 \\ \\ 84x = 93 \\ \\ x = \frac{93}{84} \\ \\ x = \frac{31}{28}$