Quiz - 17 Yayan's mother is 27 years older than Yayan. In five years she will be three times as old as he will be. How old are they now?​

mother will be 30 and yayan i don't know

Step-by-step explanation:

let x be yayans mother now

let y be yayan now

y+27 = x

x + 5 = 3(y +5)

x + 5 = 3y + 15

x - 3y = 10

elimination

- x + y = -27

x - 3y = 10

= -2y = -17

y = 8.5

Yayan is now 8 and a half whole his mother is 35 and a half

in five years he will be 13 and a half while his mother will be three times his age, 40 and a half

v = 1/3 a^2h

step-by-step explanation:

if the height is 57.7cm and the height of the slant edge is 18.2cm, then the volume is 1/3 a^2h.