the Length breadth and height of a cuboid are in the ratio 4 ratio 2 ratio 1 and total surface area is 1372 metre square find the dimensions of the cuboid​

Step-by-step explanation:

let the dimensions be in x

so, dimensions are =

length ( L ) = 4x

breadth ( B ) = 2x

height ( H ) = x

surface area = 2 ×( LB + BH + LH )

1372m² = 2 ×( 4x *2x + 2x *x + x * 4x )

1372m² = 2 ×( 8x + 2x + 4x )

1372m² = 2 ×( 14x)

1372m²÷2 = 14x

686m² = 14x

686m² ÷14 = x

49 = x

so, therefore

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2