Question

plz help me brainlians ​

Answer 1

Answer:

1\x + 1\y = z(say).

x+y/xy = z

x+y =24

xy=120

: 24/120= 1/5

Answer 2

Answer:

4) 1/5

Step-by-step explanation:

let the numbers be x and y

given

x + y = 24

xy = 120

$\frac{1}{x} + \frac{1}{y} \\ \\ = \: \frac{1}{x} ( \frac{y}{y} ) + \frac{1}{y} ( \frac{x}{x} ) \\ \\ = \: \frac{y}{xy} + \frac{x}{xy} \\ \\ = \: \frac{x + y}{xy} \\ \\ = \frac{24}{120} \\ \\ = \frac{24}{24(5)} \\ \\ = \frac{1}{5}$

Therefore the sum of reciprocals is 1/5 = 0.2

HOPE IT HELPS