Xcm cubic of substance a which has density of 800kg/m cubic is mixed 100cm cubic of water with a density of 1000kg/m cubic . the density of the mixture is 960kg/m cubic. determine the value of x.

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.

conservation of mass

mass before something happens = mass afterwards