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A tank contains 9000 L of pure water. Brine that contains 20 g of salt per liter of water is pumped into the tank at a rate of 25 L/min. The concentration of salt after t minutes (in grams per liter) is
answered
Jan 7, 2020
Chemistry
high-school
4
votes
63.0k
views
Read the scenario below and answer the question that follows. Donald and Ignacio go to the same school and both feel only hate for each other. The two are chosen to represent their school in a trivia competition.
answered
Aug 19, 2019
Health
college
4
votes
71.8k
views
What are three ways American citizens can become more informed voters. Why is it important for voters in the United States to be well informed?
answered
May 22, 2019
History
high-school
0
votes
27.9k
views
Chronic diseases are on the rise in the United States, in large part because we eat too much and exercise too little.
answered
May 16, 2019
Health
high-school
5
votes
175k
views
Which sentence uses a word that's colloquial? Go downtown and fetch some pickles. Go downtown and purchase some pickles. Go downtown and get some pickles. Go downtown and buy some pickles.
answered
Apr 21, 2019
English
middle-school
5
votes
204k
views
Nine times the difference of 8 and a number.
answered
Apr 12, 2019
Mathematics
high-school
6
votes
182k
views
John Maynard Keynes was best known for promoting the idea that governments should: A. outlaw investing in the stock market. B. allow businesses to operate as freely as possible. C. spend more during difficult
answered
Jan 26, 2019
History
middle-school
5
votes
193k
views
The port cities of east africa traded with
answered
Dec 23, 2018
Social Studies
college
1
vote
171k
views
Besides air pollution, four other important types of pollution are soil, water, waste, and __________
answered
Nov 8, 2018
Health
middle-school
3
votes
148k
views
How does margaret atwood draw on source material in the penelopiad
answered
May 17, 2018
English
high-school
2
votes
165k
views
A predicts that the strong, weak, and electromagnetic forces should become indistinguishable at high temperatures
answered
May 10, 2018
Physics
high-school
4
votes
185k
views
Rewrite 32/9 as an mixed number
answered
Apr 28, 2018
Mathematics
middle-school
5
votes
13.2k
views
Which layer of earth is responsible for creating earths magnetic field
answered
Apr 1, 2018
Biology
high-school
1
vote
171k
views
What is the last step in DNA replication called?
answered
Feb 27, 2018
Biology
middle-school
3
votes
183k
views
Ed earns about $8 per hour helping out neighbors. Write an equation to show how many hours she needs to work and earn $86.
answered
Jan 22, 2018
Mathematics
middle-school
2
votes
143k
views
For the united states, how could the successful launch of sputnik best be summarized?
answered
Nov 28, 2017
History
high-school
7
votes
38.9k
views
Can someone help me with this 1 writing question?!! please! Based on what you know about the critical selection of Internet sites, explain whether you would use the following: 11. a site produced by a
answered
Oct 16, 2017
Computers and Technology
high-school
2
votes
95.7k
views
Is 7.031 greater than 7.03
answered
Mar 25, 2016
Mathematics
middle-school
2
votes
203k
views
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