Answer:
<u>~Senpi Boi here!~</u>
Explanation:
<em>I believe the effects are the main ingredient in the production of steel is iron ore mined from Earth. Over 2,000 million tons of iron ore is mined each year, about 95 percent is used by the steel industry. Iron ore is the world’s third most produced commodity by volume after crude oil and coal and the second most traded commodity but only beaten by crude oil. The mining of iron ore is highly energy intensive and causes air pollution in the form of nitrous oxide, carbon dioxide, carbon monoxide, and sulfur dioxide from diesel generators, trucks and other equipment. Also the mining of iron ore also causes water pollution of heavy metals and acid that drains from the mines. Acid drainage can go on for thousands of years after the mining activities have stopped.</em>
(Hope this helps!)
Answer:
<em>The 1905 revolution was spurred by the Russian defeat in the Russo-Japanese War, which ended in the same year, but also by the growing realization by a variety of sectors of society of the need for reform. Politicians such as Sergei Witte had failed to accomplish this.</em>
Explanation:
Hope it helps.
Answer:
A society that has many different ethnic or national cultures mingling freely.
Explanation:
Answer:
20 members of the rappelling club are going on the trip
Explanation:
Total cost of the trip is $540.
If only one person goes, the cost is $540.
We can make the total number of people going x since we are not given.
Therefore, each member would pay (540/x)
We can also rep 7 with non members since the number is given as 7
Total people going= Members + non members.
Therefore, the cost per person is now (540/x+7).
Problem.
540/x -540/x +7 = 7
Multiply each with lowest common denominator.
When you expand, you get
540(x+7) - x(540)/x(x+7) =7
Simplify multiplication.
540x+3780-540x=7(x^2+7x)
Combine like terms
540x-540x+3780=7x^2+49x
3780=7x^2+49x
7x^2+49x-3780= 0
When we divide through by 7, we have
x^2+7x-540
Factorize, we have
(x^2+27x)-(20x-540)=0
x(x+27)-20(x+27)=0
(x-20)(x+27)=0
x is therefore 20 or -27
Since we know -27 cannot be a reasonable answer hence must be excluded.
The exact number of the people going on the trip is 20.
