Question

Pls help I really don’t get it

Answer 1

Answer:

x = 9

Step-by-step explanation:

$\triangle ABC\sim \triangle ADE.... (given)$

$\therefore \frac{AB}{AD} = \frac{BC}{DE}.... (csst)$

$\therefore \frac{28}{20} = \frac{2x+3}{15}$

$\therefore \frac{7}{5} = \frac{2x+3}{15}$

$5(2x+3) = 7\times 15$

$10x+15 = 105$

$10x = 105-15$

$10x = 90$

$x = \frac {90}{10}$

$x = 9$

Answer 2

Answer:

9

Step-by-step explanation:

hope u understand sorry for bad photo