Question

GIÚP MK VỚI:

TÌM x,y,z,t biết

\(x:y:z:t=2:3:4:5\)và \(x+y+z+t=-42\)

nhanh nha

Answer 1

ta có: \(x:y:z:t=2:3:4:5\Rightarrow\frac{x}{2}=\frac{y}{3}=\frac{z}{4}=\frac{t}{5}\)

ADTCDTSBN

có: \(\frac{x}{2}=\frac{y}{3}=\frac{z}{4}=\frac{t}{5}=\frac{x+y+z+t}{2+3+4+5}=\frac{-42}{14}=-3\)

=>...

bn tự làm tiếp nha

Answer 2

Ta có : X:Y:Z:T=2:3:4:5 =>\(\frac{X}{2}\)=\(\frac{Y}{3}\)=\(\frac{Z}{4}\)=\(\frac{T}{5}\)

= \(\frac{X+Y+Z+T}{2+3+4+5}\)=\(\frac{-42}{14}\)=-3

=> X =-6;Y=-9;Z=-12;T=-15