Answer:
So much salt will be left that is even enough to form a layer about 500 feet thick that covers all of Earth.
The Danube is the second longest river in Europe flowing from Germany to the Black Sea passing through ten different countries. It is a major water supply for irrigation, crops and drinking water for millions of people, and is used as a major shipping route and for cultural tourist destination. (A) is correct as it passes through Budapest, Vienna, Bratislava and Belgrade (all capital cities), (C) is correct as there are many tourists travel to the river on cruises, (B) could be correct also, however its main natural resource is water, and its route, so I would not consider it to have "many" natural resources. And (D) would not be correct as the river flows West to East not North to South.
Answer:
Do you have a friend that can affect your mood? Whenever she's up, you're up. When she's down, you're down. A proportional relationship between quantities is a lot like that. For example, imagine a beehive that has a lot of bees in it. Each of those bees has six legs. If I take away half the bees, there will only be half as many legs left in the hive as well. There is a proportional relationship between the number of bees and the number of bee legs in that hive.
A proportional relationship exists between two values x and y when they can be expressed in the general form y = kx, where k is the constant of proportionality.
Our beehive example could be represented by y = 6x, where x is the number of bees, y is the number of legs, and k is 6 (since each bee has 6 legs). If I double x, then y will also double, and if I divide y by x, then y/x should always be 6.
Another way to say that is if two values are proportional, then dividing them by each other will always produce the same ratio. This ratio will be the constant k, which can be expressed as a fraction or a decimal.
Explanation:
I hope this helps :)!
