Question

If the system of linear equations x + 5y - 11 = 0 and ax + (4a + 36 )y - 33 = 0 has infinitely - many solutions, then :
(a) a + 36 = 0
(b) 3a - b = 0
(c) 3a + b = 0
(d) a = 3b ​

Answer 1

Step-by-step explanation:

The thinnest of all the layers.

About 35 km on the continental masses and only 5 km on the ocean floors.

The main minerals constituting the continental mass are:

Silica

Alumina

The continental mass is also called sial. The name sial is derived from letters si of silicon and al of alumina.