(1) a/2 = b/3 =c/4 а/2 = b/3 => b = 3a/2 = 1,5a a/2 = c/4 => c = 4a/2 = 2a (2) a × b × c = 24, где b = 1,5a; c = 2a => a × 1,5a × 2a = 24 3a³ = 24 a³ = 24/3 a³ = 8 a = 2 => b = 1,5 × 2 = 3 ; c = 2 × 2 = 4. (3) Если а = 2; b = 3; c = 4, то a + b + c = 2 + 3 + 4 = 9 ответ: а + b + c = 9
а/2 = b/3 => b = 3a/2 = 1,5a
a/2 = c/4 => c = 4a/2 = 2a
(2) a × b × c = 24, где b = 1,5a; c = 2a => a × 1,5a × 2a = 24
3a³ = 24
a³ = 24/3
a³ = 8
a = 2 => b = 1,5 × 2 = 3 ; c = 2 × 2 = 4.
(3) Если а = 2; b = 3; c = 4, то a + b + c = 2 + 3 + 4 = 9
ответ: а + b + c = 9